Hummingbird Engineering Design

Hummingbird Engineering Design

The popularity of our “Dandy Designs” columns exceeds anything else we produce. As we read science literature, new examples of design in nature come across my desk every day. Many living things demonstrate design, but the hummingbird engineering design is one of the most astounding examples.

The first hummingbird of the year arrived at my feeder here in Michigan on the first of May. I am told that the first hummingbird is a “scout,” paving the way for other hummingbirds to come to the feeder and get the sugar nectar they need for energy. How do they know where to go to get their desired sugar? The “scout” that just arrived was here last year at about this time. I know that because he has a scar on his head that seems to be a healed wound from an encounter with a predator. 

We have many questions about how these tiny birds do what they do. Since we are still having chilly nights, the hummingbird’s metabolic system allows it to go into a state where its energy needs are reduced at night while remaining aware of any threats.

How do hummingbirds fly thousands of miles to arrive in Michigan in the spring and return to subtropical areas for the winter? Some have proposed that they hitchhike on geese, but that creative explanation is not supported by the evidence. We observe that the hummingbird engineering design allows them to follow the weather systems that bring warmth in the spring, and they return to warmer areas south of us in the fall.

The engineering behind the hummingbird’s flying ability challenges the best human engineering minds. The hummingbird can fly forward with enough speed to avoid predators, but it can also fly backward, sideways, or hover. The male hummingbirds in our area have a splash of red on their throats, but there is no red pigment in their feathers. Researchers only recently discovered the color dynamics that allow certain colors to be visible, and using it instead of pigment is a new technology.

The hummingbird engineering design conveys an excellent argument for the existence of God as their creator. They are part of our world’s beauty, complexity, and design that defies chance evolution.

— John N. Clayton © 2024

A Balanced System of Ocean Life

A Balanced System of Ocean Life includes sea otters
Sea Otter

Kelp safeguards the ocean’s ecology by providing a home for many sea creatures, preventing coastal erosion, and sequestering vast amounts of carbon dioxide. The last century has seen a massive decrease in kelp growing along the California coast because of an increase in sea urchins that eat kelp. Sea otters feed on sea urchins, and as people killed sea otters for their fur, the urchin population increased, reducing the underwater kelp forests. It is easy to see that God has given us a balanced system of ocean life, but humans sometimes upset the balance.

Sea otters have a fast metabolism, requiring them to eat a fourth of their body weight daily, and sea urchins are their favorite food. Because of the fur trade, sea otters disappeared from Northern and Southern California, with a small population remaining in the central part of the state. In 1913, California made sea otters protected mammals, but 1977’s Endangered Species Act gave them more protection. Since then, central California has seen a 58% increase in kelp while kelp in the northern and southern coasts has declined. Research has shown that sea otters are the reason for the ecological improvement in Central California.

Any time humans disturb the balanced system of ocean life or any ecosystem, negative consequences result. The biological design of our planet does not just consist of separate independent organisms, but all of life on Earth is interconnected. An analogy might be the workings of an airplane. Multiple systems operate within an aircraft, including the landing gear, engines, electrical system, hydraulics, wings, rudder, etc. For it to fly, all of those systems must work together. Engineers must design a plan that integrates those systems. The aircraft doesn’t happen by accident but by the design of intelligent engineers. 

All of life on Earth is interrelated and not a product of chance. There is design in all of life and in the planet itself that allows us to exist. In Proverbs 8, “Wisdom” encourages us to see God’s wise design on this planet. In verses 22-31, we see specific wisdom shown in various applications involved in preparing planet Earth for life. Verses 35-36, we see the alternative to understanding God’s use of wisdom in creating the world in which we live. Verse 35 tells us that those who find wisdom find life, and those who do not find wisdom harm themselves and prefer death. We all see all around us the interaction of living things and what happens when humans destroy one of them. 

Let us learn from the balanced system of ocean life that includes kelp, sea otters, and urchins. Caring for all life is a challenge God has given us in Genesis 2:15. The need to do this is more clear today than ever before. 

— John N. Clayton © 2024

Reference: Smithsonian magazine and The Week of April 26, 2024, page 21.

Bar-tailed Godwit Migration

Bar-tailed Godwit Migration
Bar-tailed Godwit

In October 2022, a small bird set a new world record for long-distance flying as it flew nonstop from its hatching ground in Alaska to its wintering ground in Tasmania. This bird did not land, eat, or drink for 250 hours (eleven days) as it flew at an average ground speed of 30 miles per hour, traveling from one end of the Earth to the other. The only human-made machine that can do that is a Boeing 777 with a 213-foot wingspan and powerful jet engines. The bird was a bar-tailed godwit.

Bar-tailed godwits, as scientists have discovered, are well-equipped for their long-distance journeys. They possess a high metabolic rate and a physiological tolerance for elevated cortisol levels. However, it is their feather design that truly enables them to undertake these arduous journeys. The feathers of a bar-tailed godwit provide insulation, keeping the bird warm even in cold air masses. They also repel rain, and their shape is conducive to long flight hours, aiding the bird’s forward propulsion. 

In recent years, scientific research on feathers has shown that they are perfectly engineered for a wide variety of uses. The feathers of a penguin are different from those of a hummingbird. The reason should be obvious, as these two birds live in very different environments. Fossil remains have shown that many dinosaurs had feathers. They used them to catch insects, keep warm, facilitate swimming or feeding in water, and attract mates. Those of us who believe there is design and purpose in all living things are not surprised by these discoveries. A contractor building a house will use materials that work in all kinds of houses, modifying them to fit the particular building under construction. In the same way, God uses materials to meet the needs of His organisms in various ways we are only beginning to understand.  

Skeptics have questioned why God would design organisms to travel such immense distances. Does He have something against bar-tailed godwits? In this case, these birds benefit two environments with minimal resources. Alaska doesn’t have large amounts of topsoil to supply the needs of its plants. Tasmania is an island state of Australia, located 150 miles south of the mainland. Like Alaska, Tasmania has limited natural resources, but the arrival of the bar-tailed godwit brings nutrients that allow life to flourish on this island. The design of feathers makes that possible. 

God sustains isolated environments by having lifeforms travel between them or from nutrient-rich areas to areas lacking those nutrients. God sustains the Earth by migrations of everything from insects to sea life to birds to large mammals. Traveling between needy areas sustains those areas and the lifeforms that travel between them. 

— John N. Clayton © 2024

Reference: Scientific American for May 2024, pages 41-51

We Need Human Touch

We Need Human Touch

What is the benefit of a hug or a handshake? Researchers in Germany and the Netherlands compiled data from 137 studies involving 13,000 people of all ages. Their research showed significant benefits to those who are regularly touched by others. In other words, we need human touch.

This is not a sexual issue, but touch provides physical and, to a greater extent, mental health benefits. The data shows that the benefits apply to newborns, older people, people with dementia, people struggling with stress, and people who have problems controlling their aggression. Women benefit more than men, and those who are sick or in pain benefit more than those who are healthy.

The New Testament encourages the followers of Jesus to engage in a social practice of that day that involved touching. In Luke 7:45, Jesus pointed out that the host, who was a Pharisee, had not given a warm greeting, but He said a woman in need “has not ceased to kiss my feet.” In Romans 16:16, Paul urges Christians to “greet one another with a sacred kiss.” That instruction is repeated in 1 Corinthians 16:20, 2 Corinthians 13:12, 1 Thessalonians 5:26, 1 Peter 5:14, Luke 15:20, and Acts 20:37. The hug we give one another in times of pain, loss, or separation has real value.

We need human touch, but the study showed that the regularity of touching is more important than the duration. Consensual hugs, kisses, or massages have many mental and physical health benefits. Babies do better when touched by their parents, and the positive effects are more noticeable in premature babies. Adults struggling with illness showed more significant mental health benefits from touch than healthy people in this study. 

A hug is a major way of expressing affection and closeness to someone, but even a handshake does wonders for participants. Those who have been abused may not accept a hug well, but a handshake is free of cultural bias or sexual connotation. Our society has gotten so obsessed with sexual abuse and the perception of personal rights that we have thrown the baby out with the bath. We need human touch, and that is a need the Church can help to meet.

— John N. Clayton © 2024

Reference: “A systematic review and multivariate meta-analysis of the physical and mental health benefits of touch interventions” in Nature Human Behaviour, April 8, 2024

Fungi Are All Around Us and Even Inside Us

Fungi Are All Around Us and Even Inside Us
One of the five million fungus species – morel mushroom

The cover of the April 2024 issue of National Geographic and its first article are dedicated to what the editors call “Fabulous Fungi.” The articles deal with “The Wondrous World of Fungi” with incredible pictures and a narrative that exposes what the authors call “The Hidden Kingdom.” Most of us probably don’t realize that fungi are all around us and even inside us. 

Various fungus species have a symbiotic relationship with many plants and animals, including humans. Most plants today depend on mycorrhizal fungi living in their root systems to metabolize sugar from photosynthesis while bringing nutrients and water to the plant. 

Fungi are heterotrophs, organisms that take nutrition from other organic sources such as plant or animal matter. They can break down wood and dead plant material by releasing and reabsorbing enzymes. Without fungi, dead plants and animals would pile up on forest floors, and plants would be unable to take in needed nutrients. 

Fungi are all around us and even inside us. They work in our digestive system, and scientists are still studying what they do. Cancer research has found that fungi in the colon, breast, and lungs are related to the metastatic spread of cancer and can be used to predict the presence of cancer and perhaps even treat it. 

Scientists estimate that there are around five million species of fungi, and they are more diverse than plants or vertebrates. In 2015, our program released a children’s book titled “The Friendly Fungus Among Us,” written by Charlsey Ford and John Clayton. This little 16-page booklet, written for children, points out a few benefits and uses of fungi, including food, medicines, insecticides, and detergents. It also introduces children to the role of yeast and truffles in food.  

God’s design is so incredible that science is just scratching the surface of the things that enable human life to exist on Earth. Trying to explain it by undirected evolution is impossible. “We can know there is a God through the things He has made” (Romans 1:20) is true. We see evidence everywhere, even in the fact that fungi are all around us and even inside us, and life would not be possible without them. 

— John N. Clayton © 2024

Reference: National Geographic, April 2024

The Friendly Fungus Among Us children’s book is available from the Does God Exist? ministry by contacting jncdge@aol.com or in the set of 16 children’s books at powervine.store.

Animals Can Learn From Their Peers

Animals Can Learn From Their Peers
Bees pushing blue tab to open puzzle box for food.
Credit: Alice Bridges (CC-BY 4.0)

Scientists want to know how much animals can learn from their peers. How much animal behavior is genetic, and how much can they learn by watching other members of their species? 

Many years ago, a friend who raised golden labradors showed me how her favorite lab had learned to recognize the design and shape of an inverted can that covered a treat. She used ten similar cans, but only one had a pattern on it. She had taught her favorite dog to turn over that can to get the treat, which was an odorless biscuit to eliminate the dog using its sense of smell. 

The dog got the right can ten times out of ten, going straight to the can with the treat every time. She then took a puppy and put it with the adult dog and the ten cans. The puppy followed the adult dog one or two times, and then when it was alone, it ran straight to the can with the treat and turned it over. Clearly, animals can learn from their peers since the puppy had learned by watching the adult dog. 

Various experiments show animals learning from others of their species, but what about insects? Researchers at Queen Mary University in London trained bumblebees to do complex behavioral actions. The researchers set up a container with bumblebees and a blue lever that unlocked a door when pushed. There was also a red lever to open another door leading to a container of sugar water. The researchers successfully taught a group of bumblebees how to press the two levers in sequence to access the sugar water. 

When they added new bees to the container, the newcomers “watched the original bees and figured out how to complete the puzzle—showing for the first time that insects can learn multistep processes through social interaction.” We could challenge this experiment since bees have a built-in ability to convey information to other bees. When a bee returns to the hive after finding food, it can do a “dance” that tells its fellow bees where the food is. 

Animals and insects communicate, but language is unique to humans. The Bible story of the Tower of Babel (Genesis 11:1-9) shows how essential language is to human interaction. Animals can learn from their peers, but God gave humans alone the ability to communicate using language and symbols. Only humans can convey moral issues, beliefs, and values through grammar and vocabulary.

— John N. Clayton © 2024

References: phys.org and nationalgeographic.com

A Plant That Sweats

A Plant That Sweats

You and I keep cool in hot weather by evaporating water from our skin. For water to evaporate, it has to absorb roughly 540 calories per gram of water without changing its temperature. That removes a lot of heat from our bodies, allowing us to survive hot weather. Botanists have discovered that the carline thistle plant cools itself by evaporation. You could say it’s a plant that sweats.

Carline thistles grow in an area of southern Spain where almost no other plants can survive. In August, everything shrivels and dies in the arid region around the Sierra de Cazorla mountain range, except the carline thistle. By evaporative cooling, the flowers on this plant average nine degrees cooler than the surrounding air and may be as much as 18 degrees cooler.

To perform photosynthesis, leaves allow carbon dioxide to enter through tiny pores called stomata. During this exchange, some water in the leaf escapes, allowing some evaporation. However, the carline thistle is the only known plant that allows substantial quantities of water to move to the surface, making it a plant that sweats. That provides cooling to allow the carline thistle to survive the heat of Spain’s Mediterranean habitat.

Researchers still don’t know how the carline thistle can retrieve enough water from the ground to continue this process. They plan to study the root structure for novelties that might explain it. The carline thistle’s advantage is access to pollinators. Since all other plants die, the thistle has sole access to bees and other pollinators when it flowers in August. 

Scientists are interested in this plant’s ability to survive the heat as the planet enters a period of increased temperatures. Vast areas of Earth face drought conditions, and there have always been regions of high temperatures and a lack of precipitation. God has designed plants to survive every conceivable climatic condition, even a plant that sweats. We must use what God has given us intelligently, and the carline thistle deserves our study and attention.

— John N. Clayton © 2024

Reference: “This Flower Refrigerates Itself to Survive Scorching Summers” in Scientific American, May 2024, pages 18-19.

The Design of Peregrine Falcons

The Design of Peregrine Falcons
The Design of Peregrine Falcons
Peregrin Falcon

Human structures often upset the natural balance of birds. One example is the abundance of pigeons in urban areas, which disfigure statues and decorative stone buildings and spread various diseases. One solution to the pigeon problem has been the introduction of peregrine falcons. The design of peregrine falcons has allowed them to adjust to human structures and use their highly designed physical characteristics to defend themselves in both city and rural areas.

The peregrine falcon is not exceptionally large, but it is designed for high-speed flight and uses that ability to kill other birds, even eagles. The peregrine will fly high and dive on an intended prey at over 200 miles per hour. That speed produces many challenges for these birds. The change in pressure would cause the lungs of the peregrine falcon to burst, except for the design of its nostrils. The falcon has bony tubercles on its nostrils that guide airflow away from the nasal passages, reducing the change in air pressure. 

Another problem with a high-speed dive is vision. Most of us have had the experience of having our eyes water when facing a strong wind, but the peregrine falcon has nictitating membranes that are essentially a third eyelid that keeps the eyes clear. Also, the design of peregrine falcons shows a dark area below the eye, which reduces glare. 

In the city, pigeons comprise a large percentage of the peregrine falcon diet. The birds nest in the windows of skyscrapers, giving people in the offices a view of their lifestyles and the production of offspring. Several years ago, office workers in South Bend, Indiana, complained that peregrine falcons were killing pigeons and bringing their victims back to the nest. People in tall buildings were horrified when the falcons tore up the bodies of pigeons to feed their young. They didn’t realize that peregrine falcons help maintain the balance of birds in urban areas, meeting an important need for city dwellers. In the wild, peregrine falcons eat rodents and other small mammals. 

Airplane designers have studied the design of peregrine falcons and copied many of their features. Like many other engineering problems, we can look to what God has created and copy the design to solve our own problems. Neither a jet airplane nor a peregrine falcon is a product of accidental change. Design requires intelligence and purpose, and the peregrine falcon is a classic example of both.

— John N. Clayton © 2024

Reference: allaboutbirds.org, nationalgeographic.com, and wikipedia.org

Rapid Evolution of the Florida Snail Kite

Rapid Evolution of the Florida Snail Kite
Florida Snail Kite

The Florida snail kite is a captivating bird found in southern Florida and the Everglades. Recently, researchers have seen a perplexing rapid evolution of the Florida snail kite. This bird, unlike any other, exclusively feeds on apple snails. These snails, with no significant predators, would overpopulate if not for the presence of the Florida snail kite, leading to a unique ecological balance.

There are always predators in the natural world to keep any species from totally wiping out its food supply and becoming extinct. Problems arise when humans upset the balance by eliminating the predators or introducing a species that has no natural enemies. That has happened in many places. For example, in Australia, many years ago, people introduced rabbits and eradicated the dingos that would have controlled the rabbit population. That allowed the rabbits to multiply in massive numbers, resulting in various environmental problems. 

In the case of the Florida snail kite, a larger apple snail was introduced, posing a challenge as the bird’s beak was not designed to extract such snails from their shells. Consequently, the apple snail population surged due to the absence of predators, while the Florida snail kite population dwindled. However, in a remarkable turn of events, a mutation in the Florida snail kites led to the development of a larger and longer beak, enabling them to open the shells of the larger snails. This rapid evolution of the Florida snail kite restored the balance between the birds and the snails. 

The problem for evolutionists in this situation is that it requires several mutations. A rapid change like this does not fit classical evolutionary theory, which says that genetic changes take a vast number of years to become totally distributed throughout a population. The change in the Florida snail kite population happened within ten years. 

Many geneticists and other scientists are baffled. Dr. Robert Fletcher of the University of Florida has been studying the Florida snail kite and hopes to find an explanation for this rapid change. Whatever the explanation, it is a great testimony to the God who created all living things. His design is so complex that it takes humans a long time to understand. The rapid evolution of the Florida snail kite is just one of many cases where classical evolutionary theory doesn’t fit the evidence. 

— John N. Clayton © 2024

Reference: pbs.org

A Very Tiny Frog

A Very Tiny Frog
Brazilian flea toad (brachycephalus pulex)

How small can a vertebrate get? The Brazilian flea toad (brachycephalus pulex) is the smallest known amphibian and the smallest known vertebrate. Despite its name, it isn’t a flea or a toad but a frog. This very tiny frog is small enough that two of them could sit side-by-side on your pinkie fingernail. From snout to rump, the males average about 7 millimeters and the females 8 millimeters. 

The Brazilian flea toad’s name can be misleading. These frogs were actually discovered and named in 2011, but it wasn’t until a decade later that they were studied in detail. While both toads and frogs are amphibians, there are some key differences. Toads have drier, bumpier skin and are typically found in dry environments, while frogs have smoother, more moist skin and tend to live near water.

Brazilian flea toads have a bright yellow-orange color, which is probably an aposematic signal to potential predators. Aposematism in animals is often a warning that their skin may contain toxins that make them unpleasant or dangerous to eat. A creature this small needs some way to protect itself.

Why would such a very tiny frog exist? They are endemic to a few forested hills in the southern coastal area of Brazil. Researchers have not studied them enough to understand the niche they fill in their environment, and studying such creatures as this very tiny frog is challenging. Luci Kirkpatrick of Bangor University in North Wales said that tiny creatures are “ecosystem engineers” that are “critical in making sure the food web functions properly.” 

God created an ecosystem with organisms that allow life to exist in a balanced environment on Earth. The very tiny frog known as the Brazilian flea toad can teach us a lot about the small world that sustains us.

— John N. Clayton © 2024

References: earth.com, mymodernmet.com, bbc.com, and onlinelibrary.wiley.com