There is often mixed joy and sorrow when traveling abroad, sometimes discovered in the journeying, sometimes found at the destination. Such a mixture was mine on a recent trip with Hizmet to India, where interfaith dialogue and its wonderful fruits across the many faiths of that subcontinent were very clearly evident, but that alongside increasing communal discord and even serious and extensive street violence in the face of protests against government policies of division and exclusion. Unfortunately, such social upheavals are today not limited to India; they seem to be spreading like fires in drought-stricken forests around the world, engulfing too many developing and developed countries, alike.

Early one morning around 2am, when sleep evaded me, I deeply felt the poignancy of this turbulent travel, while my mind drifted to recollect some stories often told of St Francis of Assisi preaching not only to human beings but to birds, as well as other creatures of creation:

When he drew nigh unto Bevagna he came unto a spot wherein a great multitude of birds of divers species were gathered together. When the holy man of God perceived them, he ran with all speed unto the place and greeted them as if they shared in human understanding. They on their part all awaited him and turned toward him, those that were perched on bushes bending their heads as he drew nigh them, and looking on him in unwonted wise, while he came right among them, and diligently exhorted them all to hear the word of God, saying: “My brothers the birds, much ought ye to praise your Creator, Who hath clothed you with feathers and given you wings to fly, and hath made over unto you the pure air, and careth for you without your taking thought for yourselves.” While he was speaking unto them these and other like words, the little birds—behaving themselves in wondrous wise—began to stretch their necks, to spread their wings, to open their beaks, and to look intently on him. He, with wondrous fervour of spirit, passed in and out among them, touching them with his habit, nor did one of them move from the spot until he had made the sign of the Cross over them and given them leave; then, with the blessing of the man of God, they all flew away together. All these things were witnessed by his companions that stood awaiting him by the way. Returning unto them, the simple and holy man began to blame himself for neglect in that he had not afore then preached unto the birds. [Saint Bonaventura, The Life of Saint Francis, 12.3]

And so I wondered (dreamed?), what might the birds tell us of their lives and struggles in this newly disruptive age?

The Birds: A Parable

Once upon a time, there was a bountiful flock of birds, all with iridescent blue-green plumage and a melodic trilling song of thanks through God for their heritage as a single community: together they preened, together they sang, together they lived and thrived upon the resource-laden land God gifted to their stewardship.

As time passed, other flocks were drawn to this same rich territory, as well, all with their varied distinctive plumage—fiery yellows and reds, subdued grayish-browns, and dazzling whites—and all with their individual God-given songs of praise.

The original flock generously welcomed all these newcomers, judging that sharing was better than selfish hoarding, opening better than closing ranks, and accepting different characteristics better than demanding uniformity in attributes. Together they fashioned a unity in their very diversity, sharing the riches of the land, extolling their variegated colors in songs to their Creator, generating a harmonious chorale that exemplified the Creator’s love for all of His making, as stewards of land and of one another, together…together. Generations passed in peace, colors and songs filled the land, and unity was manifested.

But a season came when a spirit of fearful possessiveness arose among some of the descendants of the blue-green flock, who began looking askance at those whose colors and songs differed. “What place have these foreigners amongst us? Have they not intruded into our way of life, depleted our resources and now threaten our very existence? Let them depart to other lands, apart from us, with their own kind.”

Though few in actual number in the beginning, these dissident voices seeded fear and discord, which took root and grew widely where once unity had thrived. For although the ones they called “foreigners” had passed many generations upon the shared land and even now comprised only a small proportion of the overall population, hardship borne of dissimulation had come to many of the birds across all the flocks. Stewardship of the land had been overshadowed by exploitation of resources for the benefit of a greedy few, and the detriment of many. Now, a scapegoat was needed to divert attention from the real causes of increasing distress and hardship.

Arbitrary hierarchies were manufactured and enforced, purporting to be inherent and according to “purity” of color and song. Only those deemed worthy now had a proper place in society, and their numbers were strictly circumscribed by documented ancestry via sole descent from the first flock. All others were relegated to some separate, ignoble status. And now, uniformity and unison in song, rather than harmony of distinctives, became the priority: “How else could the Creator receive proper praise? So-called harmony was really just cacophony, and no God could be pleased with that!” If the song were different, it had no arena, even when the song was echoing celestial praise; if the bird’s color and song were different, the bird was no longer welcomed, it had no place.

Unity was shattered, harmony disappeared, estrangement normalized. Jealously ostracizing others became the common rule. Harsh words became the norm…violence the ready remedy…destruction, injury and death the ultimate result.

More fully awake, now, I considered, “Can the birds recover themselves? Can they listen anew to St Francis’ call together joyously to offer praise to their Creator and so be content? Or is it too late?”

Perhaps more importantly, is there more than a fanciful story, here? what might these birds tell us of today’s challenges to our societies…to our very humanity? Can we, today, respond to the call of St Francis as did the birds of the field near Bevagna, to live together in peace unto the praise our Creator, seeking only His commendation?

When President Trump recently visited India, banners were emblazoned with the slogan that the world’s oldest democracy was meeting with the world’s largest democracy. Thomas Mann, in 1947 testimony before a U.S. congressional committee, noted a depressing increase in “spiritual intolerance, political inquisitions, and declining legal security,” that typically foreshadows an ultimate breakdown in democracy itself, which can only finally usher in a breakdown in societal peace and prosperity (subsequently realized in the fever of McCarthyism in the US, and the violent partition of India). Where there is no sense of the sacred through acceptance of difference and mutuality in dialogue, there is eventually only polarization: there will be those who agree to think the same way who are called friends; while all the rest are demonized as enemies. And where there are only friends and enemies, insiders and outsiders, “us” and “them,” civil war—metaphoric at least, actual bloodletting at worst—is inevitable.

So, can India recover itself? It was once the standard bearer of secular/multi-faith democracy in the developing world—or is it too late? Can we in the US recover ourselves? We were once the standard bearer of an immigrant-filled country grounded on practicing civil discourse in the developed world—or is it too late?

May the Creator grant that we all together comprehend and affirm His path of acceptance, affirmation, and peacemaking:

The Spirit has never ceased brooding over the waters … ever creating, superintending, re-creating, all that is, according to the counsel of God’s own purposive will. Together with the angels and saints, we rejoice in faith, hope and love, as the Only Holy One continually, eternally renews the face of the heavens and the earth.
Our Only Creator
through His creation
is creating us
is sustaining us
is provisioning us
is re-creating us
unto the restoration
of all His creation.

Many animals would tell us fascinating stories about their behaviors and marvelous abilities if only we could understand their language. As a result of years of research, many outstanding features of different animals have been discovered by scientists and these findings have formed the basis for numerous inventions. The Pacific golden plover (or the kolea, as it is called in Hawaii) is one such animal that is created with amazing abilities, like conserving huge amounts of energy with incredible techniques.

The Pacific golden plover is a migratory bird. The mother and father birds leave their nests in Alaska when their chicks are only a few months old, and return to Hawaii where they are originally from. Chicks by then have not yet learned how to fly [1]. After spending the summer in Northwest Alaska [2], when the winter comes chicks take off en route to the Hawaiian island where their parents are and where they have never been before. Considering that the distance is 4500 km (~2800 miles), this journey seems almost impossible for such a small bird, which, unlike many birds capable of trans-oceanic migrations, cannot swim, soar, or glide and weighs approximately 130 grams (~4.6 ounces).

Flying over the Pacific Ocean all the way from Alaska, the most extreme point of North America, to the island of Hawaii, the golden plover does not have a chance to land even for a short time to gather energy. The bird absolutely cannot fall under 130 grams either, because under this weight it would not have the energy needed for the remaining distance, which would be the end for the bird. To complicate matters even more, the Pacific golden plover loses 0.6% of its body weight every hour that it flies non-stop. There are two significant problems in this long journey; the fact that it cannot gain energy during its flight, and the problem of navigation. Not knowing which direction to fly in the vast ocean, or flying in the wrong direction for a short time, means an inevitable death for the bird.

The information we have obtained about this bird’s amazing ability to conserve energy journey is amazing. The flight time is 88 hours, or three days and four nights. For comparison, a modern Airbus A380 or Boeing 777-200LR can only fly about 18 hours without refueling [3]. During the flight, the Pacific golden plover flaps its wings 250,000 times, setting another record. “Imagine” says Dr. Oscar Wally Johnson from Montana State University “that flight you made from L.A. to Honolulu – only without the plane” [4].

Observations that have been made during the bird’s flight help us to understand how it overcomes these challenges [5]. The birds prepare for their journey by eating a lot and gaining a lot of weight in a short time. An average golden plover weighs roughly 130 grams and gains 70 grams of more weight, more than half of its body weight, during this intense eating period. Imagine a person that weighs 176 pounds (80 kg) gaining 100 pounds (45 kg) more to become 125 kg (275 pounds) in two weeks. The bird would normally lose 0.6% of its weight every hour it flies without a rest, and at the end of 88 hours it would remain only 117.8 g. As mentioned above, should the bird fall below its regular weight of 130 grams, it would be too exhausted to complete the journey. As soon as the bird runs out of energy, it would still have more than 497 miles (800 km) left before it reaches its destination. So, how is this problem solved?

If we want to save money on long car drives, then we set our cruise control to 110 km/h (~68 m/h) and drive at a constant speed. The bird does just that, and flies the whole distance at a constant and optimal speed of 51 km/h (~ 32 m/h) [6]. Flying slower than this speed would increase the amount of “fuel” that would be consumed, and flying faster would increase the energy consumption due to air resistance. Pacific golden plovers also fly in a “V” formation where the foremost birds flap their wings thus generating airflow that allows the birds in the rear of the formation to not have to use their wings in order to conserve energy [7]. Birds that are tired in front of the formation change their position with the ones who have had some rest at the back. Thus, they save about 23% of their energy and reach their destination of Hawaii while being slightly overweight. This excess weight is not stored in vain; it is estimated that more energy will be consumed in the case of bad weather conditions. During their flight, it is possible that the air could be foggy, cloudy, very sunny, or even rainy and windy, in which case their energy consumption can increase.

How does this bird determine the direction it should go? Imagine that this bird flies in absolute darkness for three nights without getting lost despite the fact that even a small deviation from their path could cause a huge deviation in the long run and cost the bird a fortune. They keep their flight formation and reach their destination despite all kinds of difficult conditions, including rain at night. With the help of a compass miraculously placed in the brains and eyes of these birds [8], they follow the magnetic field lines of the earth at a certain angle, adjust their position and follow their paths without facing any surprises [9]. Some scientists believe that the magnetic field map of the world is recorded in the eyes of migratory birds.

Migratory birds can also use the sun to correct their flight path. This difficult journey is successfully completed with the immigration program embedded into their genetic code by the Almighty Creator.

With their excellent energy saving and navigation features, the Pacific golden plover, a migratory bird species that has been doing this long-distance journey for thousands of years, provides us with very important lessons that can lead us to deep contemplation.

 “Have they never considered the birds above them, flying in lines with wings they spread out and fold in? Nothing holds them up except the All-Merciful. He indeed sees everything very well.” Mulk 67:19

References

1. If animals could talk-Wenn Tiere reden könnten Werder Gitt, K.-H.Vanheiden
2. https://academic.oup.com/auk/article-abstract/100/3/607/5185692
3. https://de.statista.com/statistik/daten/studie/232416/umfrage/reichweite-der-airbus-modelle/
4. https://hanahou.com/7.6/flight-of-the-navigators
5. https://www.nabu.de/tiere-und-pflanzen/aktionen-und-projekte/birdwatch/index.html
6. Peter F. Major, Lawrence M. Dill: The three-dimensional structure of airborne bird flocks. In: Behavioral Ecology and Sociobiology Band 4, Nr. 2, 1978, S. 111–122.
7. Cutts, J. Speakman: Energy savings in formation flight of pink-footed geese. In: J. theor. Biol. Band 189, Nr. 1, 1994, S. 251–261.
8. https://www.weltderphysik.de/thema/hinter-den-dingen/wie-finden-zugvoegel-den-weg/
9. https://www.spektrum.de/frage/orientierung-wie-finden-zugvoegel-ihren-weg/1425607

Animals such as butterflies, turtles, and birds are given the ability to perceive the Earth’s magnetic field and navigate themselves accordingly. Migratory species also benefit from the sun, stars, and even scents in nature as they from one place to another.

Magnetic fields and poles

Modern studies have focused on how animals perceive the Earth’s magnetic field and act accordingly. We need to look closer at the Earth’s “magnetic polar points” to understand how magnetic fields work exactly.

It is important not to confuse geographic and magnetic poles. There is a layer called the “inner core” in the center of our Earth where all substances are in a fluid state, similar to those seen in volcanic eruptions. Volatile and molten elements such as nickel and iron form a magnetic electric field above the Earth. This is also the force that is responsible for causing our compasses to point north. At the center, the Earth’s magnetic field changes due to these fluid substances. That is, our compass does not always show the “true north,” i.e. the exact geographical north.

As of the last decade, the Earth’s magnetic pole has kept moving at a rate of about 55 km per year. The magnetic north pole, found in Canada in 1831, has now shifted 2300 km and approached Siberia. Scientists say that about 780 thousand years ago, today’s southern and northern magnetic poles were exactly the opposite. Although the magnetic poles shift, the Earth’s magnetic field continues to function properly. This is imperative for protecting all life on Earth, as a balanced magnetic field protects our planet from the magnetic effects of solar flares and solar winds.

Effects of polar shift

A new magnetic map of our planet is released every five years due to the fact that our magnetic poles are constantly shifting. This does not affect most people on a daily basis, however it does present a challenge for people and vehicles that rely on a compass. Due to the shift, a difference called “magnetic declination angle” occurs between the magnetic north pole and the geographic north pole. This angle varies according to the location. For example, in Canada the magnetic deflection angle is 13 degrees whereas in Brazil it is 20 degrees. In order to determine their exact location, military and civilian aircraft and ships manually or automatically calculate their location based on the angle of deviation and navigate accordingly. Even if we are not aware, our mobile phones are automatically updated according to this calibration. In physics, the formula known as Lenz’s Law, or a tool called a gaussmeter, can be used to calculate the Earth’s magnetic field.

Cryptochromes

This complex and intricate system affects most animal life on Earth, including birds, insects, and fruit flies. So, if these magnetic poles keep changing how do animals find their way? Most creatures utilize cryptochromes, a type of flavoprotein that affects their body clock.

Cryptochrome (CRY) [1] is found to play a leading role in this regard. Cryptochrome-2, one of the two cryptochrome photoreceptors, has been proven to be instrumental in regulating the daily life rhythm of beings by fine-tuning their body clocks and assisting certain animals such as migratory birds, king butterflies, and fruit flies to navigate their migratory paths accurately.

Years of research conducted by Steven Reppert and his team at the University of Massachusett’s School of Medicine on fruit flies and butterflies revealed the function of cryptochrome-2.

According to the research published in Nature magazine in 2009 [2], Dr. Reppert and his team found that flies could not adjust themselves to a new magnetic field without any form of cryptochrome, but that they could regain their sensitivity to a magnetic field only after cryptochrome-2 production.

During the study, the genetic structure of fruit flies was examined and it was ensured that they produced cryptochrome-2.

Speaking to the BBC, Dr. Reppert emphasized that they developed a system to understand how the perception of the magnetic field works in fruit flies. They sought the answer to the question, if cryptochrome-2 was to be transferred from animals to flies, can these proteins act like magnetic sensors in other forms? They have found out that human beings were the most effective option among all vertebrates to yield cryptochrome for this purpose. Their experiment with butterflies yielded the same results. They observed that flies without cryptochromes did not show any signs of magnetic field detection only until their genetic structure was intervened to produce a human version of the molecule.

In another experiment carried out by scientists, a group of migratory birds had iron nuggets, some of which were magnetized to scramble the Earth’s magnetic field, attached to their feet. It was observed that the birds with magnetized nuggets lost their migration path and the birds with unmagnetized nuggets could navigate as easily as usual.

Of course, birds could not know these exact calculations that many people do not even know. Pathfinding skills are “programmed” into birds before they are born so that even if the magnetic field shifts this wonderful mechanism in animals always delivers them to the right location.

The loggerhead sea turtles

As soon as they hatch on the east coast of Florida, the loggerhead sea turtles, Caretta Carettas, swim into Sargasso Sea, migrate into the North Atlantic Circle, and then subsequently into the Atlantic Ocean. The turtles first swim to the northeast towards Europe, then to the south, and return to North America after spending 5-10 years in this hot and nutrient-rich migratory loop.

Dr. Kenneth Lohmann and his team at the University of North Carolina wanted to observe whether loggerhead sea turtles used regional magnetic fields to find their migration paths. They set up a mechanism in a large water tank that was installed with coils in order to form multiple magnetic fields. 79 newly hatched turtles were then clad in cloth vests with wires connected to a computerized monitoring system and left in the same tank. Juvenile turtles were subjected to magnetic fields equivalent to those that exist at critical points of the North Atlantic Cycle, such as in the north of Florida, off the coast of Portugal, and at the southern end of the cycle. As a result, it was observed that in every magnetic field simulated in the experiment, the turtles begin to swim in the opposite direction. For instance, when the magnetic field in the northeastern part of the loop was applied, the animals headed south. In a real ocean setting, this direction keeps them on the right track and prevents them from entering icy waters and dying of hypothermia.

How do animals do it?

There are several research works documenting that not only birds, but also bats, ants, foxes, deer, and even cows feel magnetic fields.

Animals generally migrate to find more suitable reproductive, feeding and living areas for themselves. It is amazing how they know which way to go as soon as they are born. How do they decide that a place they’ve never been to is most suitable for them? How did they learn those navigational skills?

It is amazing to observe this intricate and interlinked system between the Sun, the Earth, and all the living things in it: while the rays of the Sun are needed for life, the harmful ones among them need to be shielded away from the Earth with a magnetic field, a field which is detected by a protein in animals so they can travel to places to continue their lives.

Human cryptochrome

Cryptochrome proteins are also present in the human body [3]. Cryptochrome-2 is especially functional and is linked more to adjusting biological rhythm rather than perceiving the Earth’s magnetic field.

Dr. Aziz Sancar, Chemistry professor and Nobel Prize winner, observed in his experiments of circadian clocks [4] that the cryptochrome pigment located in the eye, skin, and part of the brain regulated the circadian rhythm of mammals.

Currently, many theories are proposed and experiments are conducted on discovering the extent that human beings can perceive the Earth’s magnetic field.

Meanwhile, the wisdom behind the constant shift in the Earth’s magnetic pole awaits to be revealed.

Notes

1. https://en.wikipedia.org/wiki/Cryptochrome
2. Buchen, Lizzie. “Butterflies’ Migrational Timekeeper Found.” Nature, September 24, 2009.
3. Discovered between 1996 and 1998 in humans by Aziz Sancar and his colleagues, cryptochrome is one of the four genes that set the circadian clock in mice. This protein is also a member of a family of proteins including photolyase, DNA’s repair enzyme, on which Prof. Aziz Sancar has worked throughout his scientific career.
4. Rhythmic behavior and physiological changes that have a 24-hour cycle and regulate the day and night cycles of living beings. 

Further reading

Attenborough, David. 1998. The Life of Birds, Princeton University Press Princeton, New Jersey.

We woke at the thud, panicked.

My wife and I had been dozing in bed, squeezing the last seconds of sleep out of our pillows before the inevitable onslaught of little people. It’s something of a delicious defeat when you hear the door creak open and steps on the carpet. You know you’re trading something so precious to you (sleep) for someone so precious, who you just wish would be precious elsewhere. But then they’re all warm and soft and tousle-headed and snuggly and saying things like “daddy, can we have special cereal?” and poking their knees into your side and sitting on your face with a full diaper and sticking cold toes into your armpits.

This morning they didn’t get to do all those precious, horrible things to us because we woke up to the sound of something thwacking against our window. After shaking off the confusion (no, it’s not a child on the roof; they can’t reach the window), I recalled why I knew the sound. It was a bird. And from the sound, a pretty sizable one.

I said as much to my wife, as I tried to open my eyes but managed only a half-squint. She half-muttered sympathy, as if she cared deeply inside but couldn’t get past the early morning fog. I added that since it was a big bird, it probably got away a little dazed, no harm done. I tried to find her to give her a reassuring pat, but I was too drowsy and missed completely. I also couldn’t pry my eyelids open still; they ached a little, as if I hadn’t used them for a week instead of approximately six hours.

I’ve read that birds, reptiles, and some mammals have something called a nictitating membrane, a third eyelid that acts as a translucent shield when they are diving or flying. They can draw it horizontally across each eye to moisten and protect it. For instance, many birds use it when they are regurgitating food for their kids so they don’t get their eyes poked out by little beaks.

I think of things like this when I’m abruptly disturbed from sleep. Things like this, and demonic children’s songs that will not be exorcised for hours.

We turned over and buried ourselves in the blankets for three more minutes before the precious, horrible people came and got us.

Nadia was playing hopscotch out on the sidewalk later in the morning when she found the bird. Robins are always the first birds my children encounter and remember. It was easy for her to name the body she stumbled upon, one story below our window, and quite dead. We had a little flurry of don’t-touch-that’s and daddy-is-it-going-to-be-okay’s, and I managed to deposit it into a small terrarium for them to look at. Animals can die of diseases communicable to humans, but this one died upon impact, and it was still warm. So the kids and I examined it carefully.

It was larger than any bird I’d seen this close. The wings were tucked in beside its impossibly light body. Many of its bones were hollow, for ease of flight. The neck was at a weird angle, a wrong angle. The death in front of me was at a wrong angle. It always has been, but it just felt much more wrong suddenly, because it was also in front of my children. Blood speckled its beak, a dark decoration above the warm red tinges on its chest.

I realized that it was a young one, probably a teenager in robin years. Its feathers were perfect, straight and sleek, pinions just slightly larger and smaller on each side, forming beautiful strong wings. And the roses on the sides under the wings were just barely forming up into a speckled breast. It was about the size of an adult but without the experience, which is why it probably hit our window.

One eye was slightly open and looking like black jelly, like it would spill out of the socket as liquid if you tipped the bird over slightly. The other eye was closed. This teenage robin had eyelashes on the under-lid. It had whiskers. Its feet were curled and delicate.

It was too beautiful. It was too sad.

Nadia was watching me. She told me she was sorry that it died because she could see the sadness in my eyes; but I wasn’t really mourning after the bird. We touched its wings, feeling its perfect form beneath our fingers: the surreal softness, the preciousness of a young fleeting life snuffed out. Not a sparrow falls but that He sees it. God saw this.

Woodpeckers will close their nictitating membrane, then tighten it a millisecond before they hit the tree so that their eyeballs don’t fall out on impact. Perhaps we need similar shields.

Only a few days earlier we had discovered a young robin hopping around the pine tree down in the yard. We took pictures. The kids enjoyed watching it hop around. There was a hawk above, circling around, and I like to think we saved that little robin’s life. There was a little one then, alive and bouncing, and then a bigger one, dead and stiff.

God saw this.

What is it about seeing that is comforting? Wouldn’t catching the sparrow be more comforting? Wouldn’t solving the problem, ending the great horror – death – wouldn’t this be a more lasting comfort? You see me, God. You see my children. But if you were to let them fall…

Sharks close their third eyelid when they attack. This way they can see their victims without getting blood in their eyes.

Kai got out of the house when he was only one year old. We noticed when it was too quiet. He had slipped out the screen door moments after I arrived home from work, and neither Linnea nor I had seen him. I locked the door. It was five minutes before we noticed he was gone, and in those five minutes he was down the outer stairs of the apartment building and toddling along the street.

The terror in my heart: I was running down the sidewalk in my dress slacks, socks, and undershirt, desperately looking for my son, expecting to see him lying in the street, expecting to be one of those parents we pray for, expecting to live with the knowledge that we didn’t see him, we didn’t see him, and then it was too late to see him…

He liked stairs, so he had kept to the house side of the sidewalk, and a kind and observant couple had pulled over and were with him four houses down when I ran up. The man was on the phone with the police, and I heard him say, “Oh never mind, it’s okay. The father’s here.” I thanked them, breathless, and held my son, and held him walking back, and held him up the stairs, and held him for another hour until he didn’t want to be held anymore, promising him I would see him, always, I would see him.

God saw this. How can I say it differently, to ease the pain? God sees… me?

If we mourn this way, how must God mourn at all He sees, at all the flickering lights snuffed out, the bruised reeds broken, the sheep silent before the shearer? Death is nothing new to Him, and in fact, He knows it as an old friend, an old foe, better than us all.

Today, this day, my children are alive and real, perfect in form and surreally soft. They are the preciousness of young life, fleeting, and my God sees them. Lest you think me morbid, think on why this is precious, why as a parent, as a child, as a human I am determined to cherish this thing we call life, why I must defend it for those I love, why death is such an aberration and a destiny and a defeated foe. The thought of death is morbid, maybe, but so is the thought of life without the thought of death. For now, we need both. And God sees us, in both.

God sees us.

Peregrine falcons see too, because as they dive at over 200 miles per hour, they blink their nictitating membranes repeatedly to clear away the debris and clean each eye.

In the midst of holding onto my family’s break-neck life, I find that I am unable to bring myself to accept such a thing as death, and yet… I know that it’s what I must do, for we will all encounter it, sooner or later. This dark thing I wish to dismiss by forgetting, or fighting, or examining on the operating table of a small terrarium: Death will come for us all.  I know, in my spirit, it is good – a gift given so that our difficult, fallen lives will not last forever, but it will never lose its dread, even when it has lost its sting. And perhaps I will embrace it as a friend when more years have passed beneath my feet, or perhaps I will embrace my Savior, and He will carry me through it into the place where it cannot enter.

And my heart holds its breath for all the times I must try to prepare my children for that moment – the one I feel certain I will never be fully prepared for, the one that God sees. I know I am actually only trying to prepare myself. I know it is not up to me, and I wish I could take more comfort in that. Perhaps someday I will. Every day is another reminder that I am not in control, and death is the great Out-of-My-Control.

But I know this. Each day that I walk in the sight of God, He will train my eyes, and my sight can be strengthened by seeing life and knowing it itself is but a shadow of the life to come.

Nadia, my little avian maven, knows that birds need nests. So she settles herself in a patch of fragrant clover and picks flowers as a pillow for the bird. She is kneeling in her pink flowered dress, a lily ringed with gingham, examining the ground and plucking appropriate stems carefully, precisely, preparing for burial. Perhaps, preparing for flight.

And I blink back a tear.

Research on hummingbirds (also known as nectar birds or Colibris), the smallest of the 9,800 bird species living today, has revealed remarkable facts. The world’s smallest birds are equipped with mind-blowing structures and functions that push all physiological and anatomical boundaries. The bee hummingbird (Mellisuga helenae), considered to be the smallest bird in the world, is only 1.96-inch-long and weighs 0.06 ounces.

There are around 330-340 species of hummingbird and they live only in North and South America and the nearby oceanic islands. With their colorful feathers, they are some of the most beautiful birds.

How the hummingbird flies

A hummingbird flaps its wings so fast that the motion cannot be seen by the human eye but only detected through special cameras. The wings move at an incredible speed in a seemingly complex pattern, drawing circles back and forth 50 to 80 times per second, depending on the species. Under the genus Colibri, the horned Sungem (Heliactin bilophus) species flaps its wings 90 times per second; the purple amethyst Colibri (Calliphlox amethystina) flaps its 80 times per second. This speed increases up to 200 per second during a short spike while escaping from an enemy. Moving back and forth, the wings oscillate in the form of the figure 8 in the air. While in most other birds the movement of the wings produces the power to lift up and down, Hummingbirds, like helicopters, can perform movements such as hanging in the air or standing steadily as well as flying backward or rising in a vertical direction.

Figure 8

Metabolic rate and energy consumption

Flying requires a lot of energy. The amount of energy spent is related to the bird’s body size and flapping speed. In this regard, given that a colibri flaps its wings 80 times per second, it takes a great deal of energy to maintain such a rapid movement. The colibri’s chest muscles were perfectly created for flapping quickly and take up 40% of the hummingbird’s total body mass. Therefore, a colibri consumes more energy than other birds; it’s basically a fighter jet.

In order to meet this high energy demand, the amount of nectar a colibri consumes every day has to be equal to their body weight. Living at such a high metabolic rate requires a fine adjustment of food consumptions with precise calculations.

Such a high food intake requires a high metabolism – and thus, the need for oxygen increases dramatically. When the need for oxygen increases, there can be two kinds of conditions. Those animals with very large lungs can intake a lot of air at once. And those with smaller lungs can produce the required oxygen by breathing many times a minute. Colibri or Nectar birds are the ones that can breathe the most in one minute. The lungs of the world’s smallest birds breathe 250 times per minute to transfer oxygen to their hearts weighing a mere 0.003 ounces and beating 1,200 times per minute.

Toronto University’s Kenneth C. Welch Jr. studied the metabolism of hummingbirds for more than 10 years. He discovered that there is a relationship between the size of hummingbirds, energy efficiency, and oxygen consumption, and that larger hummingbirds are more efficient energy users than smaller ones. A hummingbird can take 2.44 cubic inches of oxygen per 0.03 ounces an hour. When a small weight is added to the bird, this amount increases to 3.66 cubic inches, and their tissues use oxygen very efficiently.

Energy requirements

A hummingbird’s metabolism is the fastest among all vertebrates. It needs to eat almost constantly to get the energy it needs to produce fuel for its breathtaking metabolism, which functions like a power plant. It receives nectar from 2,000 flowers every day. If we humans could work at this bird’s energy levels, we’d have to eat about 1,300 sandwiches a day to produce energy, and our body temperature would rise to 725 °F! Also, our hearts would have to beat 1,260 times per minute. Although nectar from flowers is the main fuel source driving the bird’s metabolic engines, it also occasionally eats insects, for protein needs.

During any given 30-minute period, hummingbirds burn the sugar they had taken in an hour ago. If we apply this rapid intake of sugar and the metabolic cycle in human beings, we would have to drink a large bottle of soda and burn the sugar in it every minute.

Unlike us, hummingbirds use both glucose and fructose from nectar in their intestines, circulatory systems, and muscle cells. However, we can support our bodies at urgent needs with an intake rate of 30% of glucose. Half of the nectar that hummingbirds take is glucose and half is fructose. In this modern age, high fructose derived from corn in our diets has paved the way for metabolic diseases and obesity – that is, people cannot metabolize high fructose.

Scientists are trying to determine how hummingbirds can process fructose. It is known that there is a carrier molecule different from glucose in fructose. This carrier is very rare in human muscle cells, but it is found in abundance in hummingbird’s muscle fibers; so we believe the mystery of how they utilize fructose so fast is about to be solved.

Hummingbirds have been equipped with mechanisms to increase the rapid introduction of nutrients such as fructose and glucose – which are basically small sugar molecules – or amino acids into their metabolisms. Their hearts and blood vessels work at a high speed to carry the sugar into their tissues as well as to transfer a lot of blood. In addition, a large number of capillaries have been implemented close to the muscle cells so that the blood can reach each and every cell.

Wing design

While humanity has not yet invented a machine that can move in a figure-8 pattern 80 times per second, including forward and backward, the ultra-flexibility of a hummingbird’s unique wing strokes demonstrates the special creation of its bones, muscles, and joints. The colibri’s brain and nervous system, which control these muscles and joints by transmitting signals, require infinite knowledge and power. The flexibility of the shoulder joint in the movement of the wings, which allows them to bend to extreme positions not found in other birds, gives us an idea of the wing’s unique design and architecture. Although biomimetic engineers have spent millions of dollars applying this complex system to technology, they have so far failed in their attempts to produce a similar machine.

Cooling the feathers due to the friction of the muscles and the tremendous movement of the wings is a problem in itself. While man-made machines need advanced cooling systems, the hummingbird has been created with a such a built-in system.

Unique tongue structure

Biologists from the University of Connecticut have discovered that hummingbirds’ tongues have a very special design and work like micro pumps. Tongues about twice the length of their beaks allow them to reach deep into flowers. The nectar is then pumped into the body in less than 1/20^th of a second. This occurs thousands of times each day. Tai-Hsi Fan and Margaret A. Rubega, who for a long time examined how hummingbirds stick their tongues 15 or 20 times a second into the tubular part of a flower, said that they “could not clearly understand how they drink the nectar.” In their latest study, they showed that it was only possible for the birds to hold nectar through two channels in their tongues. It was once thought that the physical rule of the upward movement of liquids in capillary tubes, even without suction, worked in the hummingbird’s nectar intake; but when special video recordings of the movement of their tongues were examined, it became evident that the tongue first compressed the nectar in a series of movements, then sprung up very quickly and the nectar was suddenly sprayed into the channels.

It would seem that both the hummingbirds and the flowers they need for sustenance were created in perfect harmony.

Red hummingbirds migrate from Alaska to Mexico every year. They can fly 56 miles per hour. Prior to this journey, they feed for one or two weeks to fill their fuel tanks, forming a layer of fat equal to half their body weight. Since these activities cause a lot of heat loss on the body surfaces, they cannot provide enough energy to stay active for more than 12 hours at a time. To counter this, they fall into a deep sleep every night for 12 hours. The energy storage, flight endurance, long-distance migration, and returning with the young ones are each complicated factors that their coming together to make this journey possible cannot simply be explained by blind chance.

Of course, the smallest bird in the world would have the smallest egg size: a mere 0.5 x 0.3 inches, for a total weight of 0.007 ounces. Considering that this wonderful bird’s design is embedded into this egg, which is about the size of the nail of our little finger, it can be understood how perfect a creation it is.

Life is over, only its silent voice remains,
Entrusted to the next, its breath remains;
I know not what I will be in the beyond,
Only a broken plectrum’s melody remains.

From the memories of the days now past,
From the silent whom I thought were friends,
From the words repeated at every breath,
Only its rank-struck, dry lyric remains.

Yesterdays yellowed as if fall has hit;
Sorrow rests now on faces once lit;
Past now scattered with a blown wind,
What is done is done, its lament remains.

Birds we were, chirping, “It will appear”
Flew we did, seeking a lofty ideal;
And now it is time to fly beyond there,
From this worldly lie, only a tune remains.

Translated from Turkish by Lina Cakmak

Like all omnivorous foods, peppers – both hot and sweet – have been created in unique, wise ways to make them appealing to eat and to help reproduce.

Plants and their fruits are sustenance for herbivores, including humans. They are often brightly colored – be it red, orange, yellow, purple, or green, inviting us to a delicious food. But not all plants are meant to be eaten. Indeed, some plants are designed to be unappetizing, either through look or smell; some even have thorns, or sticky, hairy surfaces to deter us from eating them. Another remarkable way that plants are protected against herbivores is the presence of unique chemicals that induce vomiting and pain, or may be toxic.

Many edible plants need to be eaten – it’s how they spread their seeds. Thus, they produce juicy, tasty skin and sweet-smelling aromas. Why, then, are hot peppers different? Though they are nicely colored and juicy, and sweet smelling, they are also hot, and not terribly pleasant for animals to eat.

A recent study at New Mexico State University’s Chile Pepper Institute determined the hottest chili to be the Trinidad Moruga Scorpion Chili. It was chosen from among 125 varieties. Researchers dried and ground it to powder, to isolate its active compound. This way, they were able to determine that the Trinidad Moruga Scorpion reaches about 1.2 million units on the Scoville heat scale. It is so potent that it could induce sweating and tears, and of course puts the mouth on fire.

Figure 1. Molecular mechanism of TRPV receptor activated by capsaicin. TRPVs are located on the surface of nerve cells where they normally respond to changes in temperature by releasing calcium ions. Those ions signal to intracellular machinery to fire nerve action to inform the brain about increased levels of heat. Capsaicin in hot peppers mimics this system, and thus fools brain to think mouth is hot.

What make hot peppers hot?

Animals are equipped with receptors, like TRPV1 in the mouth’s nerve endings, which sense heat. Hot peppers produce a chemical called capsaicin. Capsaicin binds to and activates TRPV1 receptors; thus we feel a heat similar to a burning sensation. In reality, capsaicin does not actually increase the temperature in the mouth, but instead mimics the same process (Figure 1). Since capsaicin mainly dissolves in oil instead of water, drinking water does not help much to get rid of the burning sensation. Cold water provides only temporary aid. However, the drinking of ayran (a Turkish yogurt drink) relieves hotness by removing capsaicin due to the presence of oil in ayran. Interestingly, although mammals have receptors for capsaicin, scientists have recently discovered that birds don’t.

Capsaicin deters mammalian consumption

It is an interesting phenomenon that peppers are hot but need to be eaten to propagate their seeds in different environments, which is done through the droppings of animals. If this is the case, why are hot peppers made unpleasant with capsaicin? To figure out the wisdom behind this contradiction, Joshua Tewksbury performed a study with a group of mice and birds, and found that birds do not distinguish between sweet and hot peppers in their diet. In this study, both mice and birds ate the same amount when fed with food mixed with sweet peppers. However, mice refused to eat foods mixed with hot peppers, while birds happily ate such food. Moreover, analysis of the droppings of birds and mice showed that the seeds passed through the bird’s digestion systems were intact and fully fertile and could germinate, while seeds eaten by mice were either crushed or semi digested so that they were not fertile. Thus, the role of capsaicin in hot peppers is to deter mammals that destroy their seeds while not disturbing birds. This is a great example of ingenious interdependence.

Capsaicin as antifungal agent of peppers

Figure 2. Capsaicin is not only protective against mammals but also fungus contaminations. A) Insects make peppers prone to fungus contamination by causing harm. B) Healthy pepper C) A pepper with fungal contamination. Modified Image from Tewksbury lab.

The infinite wisdom of capsaicin protects peppers against fungus as well. Another study by Tewksbury showed that hot peppers are relatively protected against fungal infections. Tewksbury demonstrated that increased doses of capsaicin inhibit the growth of fungus. This finding is in parallel with lower fungus growth in hot peppers compared to sweet peppers.

But what about insects? How could peppers be protected from insects?

Adaptations against insects

Interestingly, the skins of hot and sweet peppers have different levels of thickness. It has been suggested that this gives an advantage to sweet peppers. Furthermore, this protective layer is made of lignin, which is made of the same material as capsaicin and helps to protect from other threats. This allows peppers to adapt to many different environments. For instance, in the presence of fungal contamination, a pepper might be able to produce more capsaicin and decrease lignin production, or vice versa.

Why do we like to eat hot peppers then?

Humans differ from mammals in their love of hot peppers. There are different explanations why we like to eat hot peppers, despite them being painful. Some experts assert that hot peppers are good for our health by lowering blood pressure, having antimicrobial effects, and increasing salivation thus making a boring diet fun. On the other hand, some experts approach it from the perspective of human emotions and argue that we are actually after the pain produced by hot peppers. In addition, there are some studies suggesting that capsaicin could also suppress other pains.

Hot pepper or capsaicin as pain suppressor

Capsaicin in hot peppers could be used as a pain suppressor, as some studies suggested. A study using mice lacking TRPV1 heat receptors showed that the increased long term activation of TRPV1 by capsaicin could relieve pain following the accumulation of high doses of Ca2+ in the cells. This is accomplished by the suppression of both cellular activities and the transmission of pain through nerves.

Hot peppers are hot and we love them. It seems like we will continue consuming them. As every other art of creation, hot or sweet peppers are likely to have many more levels of wisdom awaiting us to discover.

References

• Tewksbury Lab. Retrieved from: http://faculty.washington.edu/tewksjj/res_pai.html on 18.2.2012.
• Yalgın. Ç. 2012. Acı biberler niye acı? (Why Are Peppers Hot?) Açık Bilim. Retrieved from: http://www.acikbilim.com on 18.2.2012.
• Zivkovic, B. 2006. Hot peppers – Why are they hot? A Blog Around The Clock.

After a caterpillar undergoes metamorphosis, a mature Monarch butterfly lives for approximately six weeks under normal conditions. But as we will see, there is one exception to this rule.

These butterflies, with a wing span of 8-10 centimeters, live in Canada and the Northern USA and they migrate to South America during their migratory season. They increase their body weight by consuming flower nectar before starting the journey, to prepare for the 5000 km long route ahead of them. During this journey, they change direction many times because of rain storms and extreme weather, but they are never lost.

Towards the end of August, Monarch butterflies begin their journey from North America to the Oyamel forests in Mexico. They fly around 80 km a day, reaching speeds up to 20 km/hour. Though most generations only live for six weeks, these butterflies live for months. After an arduous journey of 8 to 10 weeks, they arrive at the 3000 meter high mountains in November and December. The Mexican mountains make an ideal place for these animals. Butterflies hibernate in this region for four months, from December to March, and survive on their fat reserves.

While this north to south journey is completed by one generation, the return journey takes four generations to complete. With the onset of spring, Monarch butterflies start feasting on honey nectar to get the energy to head back north. Around mid-March, they start to migrate northward, headed back to their birthplace. Meanwhile, having reached maturity, they reproduce. Each member of this generation lays around 700 eggs in suitable places between March and April, and then dies near mid May.

Female butterflies lay their eggs near the leaves of poisonous plants. Hatching larvae feed on these leaves. These neurotoxic plant leaves serve as a protection against predators. This poison is found to remain in the tissues of the insect even after it becomes a mature butterfly and is not harmful to it. The protection is necessary, for monarch butterflies have charming colors that attract many other animals. Thus some birds try to prey on them, only to fail each time. Because of the neurotoxin, these birds become stunned as soon as they touch their beaks to the butterfly.

It takes about a month for an egg to mature to an adult butterfly. Thus, the first generation comes to existence on the journey home. Like a programmed machine, this generation continues their parents’ journey north. They leave their eggs, for the second generation, during April and May, and then die in mid-June.

The second generation also continues the northward journey of their parents. They lay their eggs during May and June, and then die around mid-July.

Third generation Monarchs, however, arrive in Canada around June or July. The females of this generation lay their final eggs in mid-July and die during August. As a result, the fourth generation reaches maturity in a month, thus completing the annual tour. The fourth generation begins migrating south, towards the mountains of Mexico, at the end of the same month and hibernates there. This final generation lives six months more than the other generations, long enough to lay their eggs during spring. Without this character, the final generation Monarch butterflies would have died before spring, and would thus be unable to reach adulthood to lay eggs.

The migration to Mexico of a butterfly with such a delicate muscle structure confounded scientists for a long time. It is a fascinating, extraordinary event for millions of butterflies that, unlike migratory birds, lack a complicated nervous system. Yet despite this, they are able to pinpoint, and meet, in an area of around 1000 square kilometers.

An ultimate version of the global positioning (GPS) system as invented by the scientists is blessed as a birth-right to Monarch butterflies. Biologist Steven Reppert and his team from Massachusetts University have uncovered very interesting facts while studying butterfly antennae. When butterflies were placed in a flight simulator type of device with their antennae cut, they changed their direction after flying a while. Migrating butterflies with their antennae continued to move Southwest, however butterflies without their antennae flew in different directions. Not only did butterflies lose their navigational skills without their antennae but also had problems with their daily, time-dependent navigation.

Is it sufficient to explain this phenomenon by instinct only?

Pinar Celik has a PhD in medicine. She is a freelance writer from Turkey.

References

• Zhan S, Merlin C, Boore JL, Reppert SM. “The Monarch Butterfly Genome Yields Insights into Long-Distance Migration”. Cell 147 (5): 1171–85. 2011
• Davis, A.K. “Wing color of monarch butterflies (Danaus plexippus) in eastern North America across life stages: migrants are ‘redder’ than breeding and overwintering stages”. Psyche: 1–5. 2009
• Merlin, C; Gegear, RJ; Reppert, SM. “Antennal circadian clocks coordinate sun compass orientation in migratory monarch butterflies”. Science 325 (5948): 1700–1704. 2009
• Kyriacou, CP. “Unraveling Traveling”. Science 325 (5948): 1629–1630. 2009

Digestion in grain-eating birds

The digestive system of the chicken, which is a representative of the world of birds, is comprised of organs lined up in straight line succession: a beak, mouth, gullet, craw, front stomach (with gland), gizzard, small intestine, caecum, large intestine, cloacae and anus. In addition, enzymes secreted from the pancreas, liver and gallbladder also have digestive duties. Ending in a sharp point, the beak was created especially to be able to pick up single pieces of feed. Chickens do not have assisting organs like the palate, cheek, tongue or teeth that are normally found in the mouth, the first door of digestion in most animals. Ruminating animals like cows, sheep, goats and camels use the tongue instead of a beak for taking food into their mouths, and then their teeth are used to begin the breakdown of food. In chickens, however, this breakdown is initiated with the bottom and top beak. In ruminants there are taste buds in different shapes on the tip, sides and middle of their tongues which also function as the organ for the sense of taste. Since such taste buds are not found in chickens, there is also no perception of taste like that experienced in ruminating animals.

The structure and function of the gullet, or food pipe, has similar characteristics in chickens and other animals. However, just as in all birds that eat single seeds and grains, there is another digestive organ in chickens in the shape of a bag opposite to where the gullet expands. Called a craw, this tiny pouch is a place for the storage, wetting and softening of feed, and it serves the purpose of bringing food to the consistency needed for further digestion; consequently, it lightens the burden of the stomach (just like when we leave food that is difficult to cook, like chick peas or beans, standing in water overnight before we cook it).

A chicken’s stomach is composed of two different sections, the front stomach and the gizzard. The feed the chicken eats passes from the gullet and the craw to the front stomach, where digestive secretions are made. The food is stored here briefly and mixed with the special fluids of the stomach. Found in this secretion are both the pepsin enzyme, which starts the digestion of proteins, and hydrochloric acid, which is secreted to generate the pH level that makes this enzyme effective (and which also helps in the dissolution of minerals). These two important secretions are produced by different glands in the stomach. Like the craw, the gizzard, which comes after the front stomach, is the place where mechanical digestion, which is particular to all birds that eat grains, takes place. The gizzard is called the stomach with muscles because it is comprised of a pair of thick and strong muscle layers. As a result of these muscles constricting strongly, feed is broken down mechanically and ground up. While gathering feed, the chicken usually also swallows small pieces of sand, stone and limestone as if it knows how its digestive system works. Although many of us think that chickens swallow stones because they cannot distinguish them from feed, it is obvious that there is a purpose why they are doing it. If these stones, which are like “mill stones” for the digestive tract, are not found in the gizzard, the feed is not fully ground; consequently, it will pass to the small intestine in a form that will not be fully beneficial to the body.

Depending on its characteristics, the feed eaten can stay in the gizzard for a few minutes or several hours. The small intestine, which comes after the stomach, is comprised of the duodenum (twelve-finger intestine), the jejunum and the ileum. The small intestine is similar in grain-eating birds to those of other animals. The duodenum empties the secretions coming from the pancreas and the bile coming from the gall bladder. The digestion and absorption of the feed actually takes place in the small intestine due to these secretions. Final digestion and the absorption of carbohydrates and protein are effected by bacteria found at the point where the small intestine ends, in the 10-15 centimeter-long, V-shaped caecum.

The large intestine and the cloacae are found in the advanced sections of the digestive system. The role of the large intestine, which is twice as large in diameter as the small intestine, is to temporarily store the waste from the digested food and to maintain the balance of water in the body. The cloacae is a small orifice with a structure formed by the widening of the large intestine towards the anus and where the digestive, defecation and reproduction tracts open up.

While giving grain-eating birds the above mechanisms in order to nourish them, God equipped ruminating animals with different oral, dental, gastric and intestinal structures as well as different digestive strategies.

Digestion in ruminating mammals

While secreting saliva is essential for ruminating animals, it is not necessary for chickens because of differences in their digestive system. As a result of the secretion of saliva the fodder of ruminants is softened and dryness of mouth is prevented. Ptyalin (or alpha amylase), which is found in saliva, has antibacterial properties that protect animals from infections in addition to playing a role in digestion. The mother cows constantly licking their newborn calves is both an expression of compassion and also of wisdom in protecting the newborn from probable infections (Similarly, animals like dogs and cats licking their wounds and thus speeding up healing is no coincidence, but a sign of universal wisdom and mercy). This wisdom shows that saliva, of which cows secrete 90-180 liters and sheep 5-8 liters per day, is not a waste.

The stomachs of ruminants are comprised of four sections; the first three are the rumen, the reticulum and the omasum. These three sections are called the front stomach. The section that does the real work is called the abomasum. Because the nutritional value of grass is very low in comparison with meat, it is obvious that a large bodied ruminant will need a lot of grass. Consequently, the capacity of rumen being 150 liters is a wise and fitting design. In addition, the cellulase enzyme that digests the cellulose walls in plant cells is not produced in the tissues of any mammals. The possessor of infinite knowledge and power, God placed high concentrations of bacteria, protozoa, yeast and fungus-all of which can produce the cellulase enzyme needed to break down cellulose-in the rumen of ruminating mammals. The rumen acts as a fermentation factory because of these microorganisms. Breaking down the cellulose-rich food consumed by ruminants, these microorganisms both fulfill their own nutritional needs and help to meet the host’s energy, protein and vitamin (especially B12) needs within a symbiotic relationship. I wonder where the microorganisms in the rumen learned about this synthesis and assistance mechanisms!

What a magnificent engineering wonder is the “sulcus esophagus,” a semi-duct structure in the shape of a canoe that extends from the end of the food pipe in newborn ruminants to the abomasum where the essential stage of digestion takes place. Due to this structure, milk drunk reaches the last stage of the stomach without passing through the rumen, for there is no matter like cellulose in the content of milk that needs to be broken down. Consequently, there is no need for the milk to go to the rumen. If it were not like this, the milk would go directly to the rumen where it would be ruined by microorganisms, lose its nutritional quality and be like a bribe given in vain to the microorganisms in the rumen.

Able to dive into the water at a speed approaching 90 km, the kingfisher can grab its prey at this speed in a depth of 60 cm, instantly pivot back and then, using its wings as oars, surface above the water. In order not to lose its prey, the bird’s precisely timed diving and surfacing takes place in three seconds.

A torpedo as light as a fly

The most basic factor that enables an animate creature to dive into the water is its body being heavier than the water. With a weight of 40 g and a length of 18 cm, the kingfisher (Alcedo atthis) should remain on top of the water and not be able to catch fish because it cannot dive. However, because God put the sustenance of this bird in the depths of the sea, He gave it the special diving ability. Able to dive into the water at a speed approaching 90 km, the kingfisher can grab its prey at this speed in a depth of 60 cm, instantly pivot back and then, using its wings as oars, surface above the water. In order not to lose its prey, the bird’s precisely timed diving and surfacing takes place in three seconds. In a short period of time the kingfisher has traveled a distance 414 times its height. This shows that it can move as fast as a fighter aircraft. If we consider what the kingfisher does on a human scale, a person would be able to dive 26 meters in three seconds and then resurface with a prey the size of a sheepdog. Here another interesting point should be made. The fish the kingfisher wants to catch is actually in a different position than it would visually appear from the sky due to the difference of the degrees of deflection of light in water and air. Bereft of any knowledge of optics, how does this bird solve this problem of physics?

How heavy is a bird feather?

There are physical limits to bird’s flying capabilities. In order for a bird to be able to fly, its weight should not be more than 15 kg. In order for birds heavier than this to fly, their wings have to be proportionately larger so it is difficult for this big a bird with heavy wings to fly. Male silent swans (Cygnus olor) weigh more than 14 kg; in fact, there are even some that weigh 20 kg. However, God compensated for this situation with a special structure. Like other birds, the silent swans have some bones filled with air and the inner part of these bones has been made stronger with small props. For this reason, the feathers and bones of these birds are one-tenth as heavy as their bodies. There are more than 12,000 muscle ligaments in the wings of swans to activate the feathers used in flying. Long (50 cm) wing feathers greatly increase the carriage surface of the wings. Each feather can carry 200 grams of weight during flight. For this reason, a swan that loses just one wing feather can no longer take flight. It takes 60 days for the feathers to be completely renewed.

Because the owl’s ears were created asymmetrically (the right ear is higher), sounds reach the close ear 1/300,000 of a second earlier. This small amount of time difference is enough for the owl to determine the exact place of the source of the sound.

Are owls flying radar stations?

Under normal conditions it is not possible to hear the sound waves of a mouse eating a hazelnut in a hayloft. Possessing a sensitive receiver, owls are an exception. The facial structure of owls resembles the high tech early warning equipment on AWACS planes. Focusing on even the smallest sound wave just like a satellite antenna, this structure cannot be explained by the intelligence of an owl.

Because the owl’s ears were created asymmetrically (the right ear is higher), sounds reach the close ear 1/300,000 of a second earlier. This small time difference is enough for the owl to determine the exact location of the source of the sound. Through the 95,000 nerve cells in the simultaneous hearing center, the brain imagines a 3-D image of the prey. Due to the anatomy of it 14 neck vertebrae (humans and other mammals have seven vertebrae), the owl was given the capability of turning its head 270 degrees and determining the exact position of its prey. While flying towards the place where the sound came from, the owl can constantly recalculate the position of the prey relative to its own position, even if the prey changes its place. As a result of this precise calculation, only three seconds passes between the moment the owl first heard the sound of the prey and the moment it makes its deadly attack.

Is there a mathematical formula for remaining alive?

The formula is this: 7-15-70. It is difficult to immediately understand what these three numbers mean. However, these numbers make it almost impossible for a starling to be caught by its enemies.

We can explain the meaning of these numbers as follows: Whatever 7 close neighbors do, imitate them; constantly fly at least 15 cm from them; do not ever fly more than 70 km per hour. There is one more rule: Keep your distance from all enemies. When these principles are followed, enormous protection follows.

Flocks of starlings are comprised of several thousands of birds that move like one organism. In less than a second, the flock’s direction, size and breadth can change. In this situation their enemies do not have much of a chance against such a tight mass. For predatory birds need to determine their targets in order to catch their prey. The fast and sudden movements of the flock prevent attack from predatory birds. In spite of this, predators who attempt attack go back empty-handed. For acting like one body, this enormous flock encompasses the enemy in a counter current with the waves they create and narrow it down until the bird can no longer fly. Becoming dazed, the predatory bird has no choice but to fly away from the flock. This instructive action of the starlings brings to mind the Qur’anic verse: “There is not an animal (that lives) on the earth, not a being that flies on its wings, but (forms part of) communities like you” (6:38).

The world’s best camera can see objects as big as a mouse from a height of 300 meters. This is an amazing thing, but even so, no camera can compare in any respect to an eagle’s eyes.

Can eagles see from the side?

The world’s best camera can see objects as big as a mouse from a height of 300 meters. This is an amazing thing, but even so, no camera can compare in any respect to an eagle’s eyes. Eagles can clearly see their targets from a distance of more than 1,000 meters. Eagles can even see a fish in fine detail from this distance. This special quality bestowed upon eagles is something technology would have difficulty imitating. For the lens of the eagle’s eye is soft contrary to human eyes’ and it sees clearly more quickly and it more greatly magnifies its object. In addition, each of the eyes of the eagle has two separate vision centers. This allows the birds to see clearly both in front of them and at their sides. To attain this perfect vision, more than a million light receiving cells are on duty in each square millimeter of the retina. Comparing this to a human eye, a person has 200,000 cells in the same unit of space in the retina. Due to this structure of the retina and lens, an eagle’s eyes are as large as a human being’s eyes. If a human eye were to have the same capability, it would have to be as large as an apple. Because a human does not need to hunt like an eagle, he was not burdened with such big eyes.

How much can a brain be shaken?

G-force expresses changes in a body’s weight caused by acceleration. For example, when a jet is climbing towards the sky, the gravity a pilot is subject to increases immensely and his blood puts a lot of pressure on the veins in his legs. A space vehicle has 3 G when it takes off; a war plane has an average of 10 G; and a car’s peak force is 120 G when it crashes head on at full speed. With every peck, a woodpecker’s beak reaches 1,200 G in a way that is hard to believe. In other words, it is like the bird’s head hits a cement wall at a speed of 25 km per hour, and the woodpecker does this 20 times a second.

Experiencing pressures greater than 14 G is deadly for a human being. In comparison, woodpeckers have been given the ability to endure several hundred times what astronauts experience in their landings. This is only possible with a very special histological/anatomic structure and a skull created with perfect proportions. With the beak hitting a tree in a hard manner, a woodpecker’s brain almost completely fills its skull in order to prevent a trauma from developing. Created with a spongy structure, its bone structure acts as a shock absorber. The head and nape of the neck muscles contract towards the place it has hit and the waves from the blow become harmless. Even the lower part of the tongue is wound around the skull once in order to secure the brain and protect it from shaking. This situation does not create a problem or difficulty for woodpeckers which hit their heads against trees for a handful of larva, for they have been prepared for these conditions in their creation.

Small birds creating the power of a hurricane

Having a spread of 35 cm between two wings when they are opened, swallows weigh less than a normal size lighter. At first glance the apparent body structure of swallows suggests that they should only display an average flight capability with their deficient ability to maneuver. However, when we go out into nature and see swallows soaring in the countryside, we see that the situation is not like that at all. With the amazing way in which they were created, swallows succeed in doing a job that appears to be almost impossible physically. These birds can pass with jet speed through a space only 2 cm wider than their bodies. They succeed in this by flapping their wings rhythmically without stopping. Researchers have determined that they do this by means of a wing structure that moves with a special mechanism. The upper part of the wings of swallows can turn the air into an eddy. With the pressure created by this eddy, a great power of lifting and balancing occurs. The birds virtually fly with the power of hurricanes. Until now, this style of flying was only known to exist with insects. By seemingly gluing their wings to their bodies with this wonderful mechanism bestowed by the Creator, swallows easily pass through difficult places. Consequently, swallows can make 90-degree turns at astonishing speeds. Supersonic planes also benefit by generating these same kind of mini-hurricanes.

Can there be flying submarines?

Every year in May, tens of thousands of sharks, whales and dolphins come to the South African coastlines because of the schools of sardines (Sardinella). However, the strongest sardine hunter is not under water; it is a bird eyeing its prey from 30 meters high. The northern gannet (Morus capensis) a much better hunter than other sea birds, has a perfect body structure. While even sharks can only catch one out of two prey, the northern gannet’s perfect hunting techniques enable it to make a record success. The first reason for this is its reaching its target quickly and directly; the second reason is its being able to move about comfortably under water. These sea birds can go down 10 meters at first and then 20 meters by flapping their wings. They can dive at a speed of 120 km per hour. Their capability of holding oxygen-rich air in their air bags allows them to hunt up to one minute under water. Because they usually finish their prey under water, it is not common for them to bring it to the surface.

As research supported by technological possibilities increases, many more amazing biological mechanisms will be discovered. Doesn’t it strain reason to explain the existence of animate creatures that continue life with such fine calculations by means of chance?