Survival in the Cold by Design

Survival in the Cold by Design
Chickadee in Winter Snow

As I sit in my warm office in Michigan today, I look out at snow and ice. My outdoor thermometer registers -8 degrees, and I wonder how the ducks on the river, the squirrels on the ground, and the birds in the air handle these frigid temperatures. I enjoy watching the birds on my bird feeders and the squirrels chasing each other in the oak trees, but I wonder how they survive. Then I apply my knowledge of physics, and I understand animal survival in the cold.

I always enjoyed teaching the heat and thermodynamics section of my high school physics class. One of my lines that always got a laugh was, “Why do we need to wear clothes to survive, outside of the obvious one.” The point is that our skin is not very good insulation against the cold. In winter, we pick clothes with air spaces within the fabric because air is a very poor conductor of heat, so it insulates us from the cold. We use coats stuffed with goosedown or some facsimile to be well protected from the cold. Goosedown also insulates sleeping bags and quilts.

Chickadees visit my bird feeders regularly. They usually are relatively sleek birds that fly smoothly and efficiently. As I look at my chickadees on this day of -8 degrees, they are almost round. Their feathers are fluffed up to trap air, so the birds are well insulated for survival in the cold. They don’t fly as smoothly as they do in summer. They crowd my feeders and would sit there without moving if they could.

Squirrels have a different problem. Their coats give them some protection, but getting food is an issue when heavy snow covers everything. They need to keep warm but avoid activities that would sap their reserve of nutrition. My gaze goes to the top of the oak trees, and I see a large round ball of leaves and twigs. Many years ago, to expand our church parking lot, we had to take down a tree with a large round ball of leaves and twigs near the top. As the tree came down, a squirrel ran out of the ball. I put my hand into the nest to see what was inside. Even though the air temperature was 20 degrees, it was very warm inside the ball of leaves and squirrel hair.

God has equipped His creatures for survival in the cold, and His design enables our Michigan winter to throb with animal activity. Trial and error explanations are weak because survival errors are lethal. We can see design in the natural world that speaks of God’s wisdom and planning. The evidence allows us to “know there is a God through the things He has made” (Romans 1:20). Watching animals thrive in very cold conditions is an excellent example of that evidence.

— John N. Clayton © 2024

Bristol Bay and God’s Design

Bristol Bay and God's Design
Bristol Bay

There are many fascinating facts about Alaska. One of them is how landlocked species of fish, animals, and plants receive the required nutrients. With the weather extremes, short growing season, and lack of soil, making the area biologically rich requires an extraordinary life form. Fishing lodges thrive throughout the Bristol Bay area because sport fishers consider it one of the most desirable places to catch wild salmon and trout. In addition to the sport fishing, native people and commercial fishing operations make a living in the Bristol Bay area. Both humans and wildlife in the area depend on one fish species, the red salmon, or as it is also known, the sockeye.

More than 60 million wild salmon pour into Bristol Bay every year, sustaining the wildlife and human economy. Sockeye eggs provide food for all five species of Pacific salmon, but they also allow the land-locked species Arctic char, Dolly Varden trout, and rainbow trout to exist. The fry, smolts, and adults support commercial and subsistence harvesting.

The total mass of sockeyes each year is in the millions of tons. After the sockeyes have spawned, they die, and their carcasses provide nutrients that allow plants to thrive in an area with very little soil. Without the sockeye, the entire Bristol Bay area would be a biological desert unable to support any fish or animals that eat fish.

Mining operations are trying hard to get permission to establish several kinds of mines in the Bristol Bay region. Undoubtedly, such operations would create roads capable of hauling metals, mining equipment, chemical leaching, and waste materials. Supplying food and managing waste from hundreds of miners and support personnel living in the Bristol Bay area for years at a time could destroy the fragile ecosystem, harming those who depend on it. The more scientists study the ecology of Alaska, the more they become aware of its fragility.

Bristol Bay speaks of our need to care for the creation that God has placed in our hands. It is hard to experience this area and believe its formation and natural balance happened because of blind, accidental chance. We must not allow it to become a showcase for selfish human greed and mismanagement.

— John N. Clayton © 2024

Reference: Alaska Magazine for February 2024, page 48.

Why Women Have to Experience Menopause

Why Women Have to Experience Menopause

We get some interesting questions in this age of skepticism and rejection of God. One that came up recently is why women have to experience menopause. Like many questions raised by those who wish to deny God’s existence, this question is rooted in ignorance and a failure to think carefully.

Most members of the animal kingdom die when they can no longer reproduce. Mammals such as elephants and orangutans remain fertile throughout their lives. The number of animals that live beyond their reproductive years is very small. It has only been documented in a few species, including humans, orcas, and short-finned pilot whales.

There is no scientific explanation for the uniqueness of the human reproductive cycle. Dr. Shankar Singh of McMaster University in Canada maintains that this is because men favor younger mates, but this evolutionary explanation ignores the genetic implications that come with it. The more logical explanation of this fact is the different roles women have at various stages of life. In Titus 2:1-5, Paul talks about older women teaching younger women.

As we get older, our roles change. There is a reason for humans to live beyond the time when they can produce offspring. Teaching, leading, and serving can be more effective when done by older humans. That is not true of fish, birds, rodents, insects, or most mammals.

It is a good design that older women can no longer reproduce. My 70+-year-old wife says the thought of having a baby at her age is appalling. For orangutans and elephants, a female having offspring late in life helps maintain the species, and the whole group raises offspring, not just the mother.

Instead of asking why women have to experience menopause, we should note that God’s remarkable design of reproduction uniquely shows His handiwork.

— John N. Clayton © 2024

Reference: National Wildlife, winter 2024, page 17.

God Gave Predators the Tools They Need

God Gave Predators the Tools They Need - such as the great gray owl

The balance we see in the natural world is strong evidence for design rather than chance. God gave predators the tools they need to control the population of animals that reproduce in large numbers. Owls are a great example of skillful predators. Rodents can cause significant harm to humans if their populations get out of control. However, in some cases, humans have interfered with the natural function of the predators of mice and rats, allowing the population of those rodents to grow to the point of threatening human populations.

In places where humans have not interfered with the natural balance, the design features of predators allow them to control rodent populations. Winter snow cover benefits rodents because they can move under snow. This security would let rodent numbers explode were it not for predators designed to catch them under the snow. One of those predators is owls.

An owl can capture a rodent under two feet of snow by detecting infrasonic low-frequency sounds. Dr. Cristopher Clark at the University of California, Riverside, has been studying how the design of owls allows them to have this skill. Using modern equipment, Dr. Clark has found that only low-frequency sounds can penetrate deep snow. The owl’s facial disk is especially sensitive to these low-frequency waves, and the infrasonic detectors are located right behind each eye. The owl will hover in midair over a spot where it senses prey. When the owl receives the low-frequency sounds, it plunges into the snow to grab the prey with its talons.

Between owls, foxes, and some subsurface animals, God gave predators the tools they need to control the rodent population, protecting humans. The predators’ special equipment is required to remove the rodents, and the design of that equipment indicates it was not a mere accident.

— John N. Clayton © 2024

Reference: “Snow Hunting Owls” on nwf.org and in National Wildlife magazine Winter 2024, page 8.

Birds that Swim in Cold Water

Birds that Swim in Cold Water - Ducks on Ice

Scientists have only recently come to understand many designs in nature. An interesting example is how birds that swim in cold water survive without hypothermia. The feet of ducks, gulls, loons, and geese show an example of incredible hidden design.

In these birds, arterial blood enters the leg and cools down. On its way to the heart, ventral blood picks up the heat released by the arterial blood in a process called “countercurrent heat exchange.” A mesh of arteries and veins called the “rete mirabile” (Latin for “wonderful net”) surrounds the blood vessels and amplifies the heat exchange. This arrangement limits the amount of heat the bird loses, saving it from having to use energy to reheat the blood. When you combine this discovery with the design that allows them to stand on one leg, you see how they are ideally suited to live in cold climates.

It is truly remarkable that virtually all climate zones have life forms perfectly designed to live in them. God created life to fill the whole earth regardless of climate conditions. Romans 1:20 says, “We can know there is a God through the things He had made.” Birds show the design of living things that radiates the wisdom and knowledge of the Creator. The foot design of birds that swim in cold water is just one great example of that.

— John N. Clayton © 2023

Reference: Audubon magazine winter 2023, page 52

You Can’t Sneak Up on a Sleeping Bird

You cant sneak up on a sleeping bird - Chinstrap Penguin
Chinstrap Penguin Feeding Young Chick

Have you ever tried quietly approaching a bird that appeared to be sleeping? If you have, you were probably unsuccessful, especially if the bird was nesting. Researchers have discovered a design feature called “microsleeps” that may help explain why you can’t sneak up on a sleeping bird.

Researchers discovered this feature in chinstrap penguins in Antarctica. The Max Planck Institute in Germany, the Korean Polar Research Institute, and the Neuroscience Research Center in France conducted this research. They found that the chinstrap penguins nod off thousands of times daily but sleep for only four seconds each time.

The researchers attached brain wave sensors, so there is no question that the birds were sleeping. The short microsleep naps add up to roughly eleven hours a day. The birds are essentially awake all the time, protecting their eggs, their young, and their nests. To get accurate data, researchers chose Antarctica, where the Sun does not set during the breeding season. You can’t sneak up on a sleeping bird, but researchers haven’t determined if all birds practice microsleep or whether they do it when they are not nesting.

The more we learn about the creation, the more we appreciate the Creator who made all living things, giving them the necessary equipment to survive. Human technology is opening more and more doors of understanding to “the things God has made” (Romans 1:20). The complexity of systems that allow survival and safety for various animal species is another argument for rejecting the notion that life is the product of blind chance.

— John N. Clayton © 2023

References: Smithsonian Magazine and National Geographic

Neon Tetras Avoid Bottlenecks

Neon Tetras Avoid Bottlenecks
Neon Tetra

Sometimes, we can overlook design features in living things even though they are all around us. Most of us who have had tropical fish aquariums are familiar with the fish known as neon tetras. These fish are great for aquariums because they are tiny – usually about an inch long. They have a brilliant blue stripe running laterally and a red strip underneath toward the tail. These fish are native to the Amazon Basin and live in freshwater.

Researchers have discovered that neon tetras have a quality lacking among many humans. They have the ability to wait their turn. Researchers took a school of tetras and put them in a tank that had a narrow opening to get to a food source. The tetras could get through the narrow opening without clogging and impeding passage. The small fish didn’t collide with one another as they swam through the opening to get to the other side of the tank. Researchers say ants are the only other form of life to demonstrate agility in avoiding bottlenecks.

One has to wonder why these fish have this ability since humans have not solved the problem of getting large numbers of people through narrow openings. Neon tetras live in streams that pass through many rocks, and being able to wait their turn gives them a better chance of survival than if they ended up with a bottleneck.

All living things have characteristics carefully fitted to their needs and environment. As we study life forms, we see this repeatedly, and it screams out the message of Romans 1:20: “we can know there is a God through the things He has made.”

— John N. Clayton © 2023

Reference: National Geographic for December 23, page 22

The Treasury of the Snow

A Red Fox and The Treasury of the Snow
A Red Fox Detecting Prey Under the Snow

“Have you entered the treasury of the snow…?” (Job 38:22”. “For as the rain comes down, and the snow from heaven, and do not return there, but water the earth, and make it bring forth and bud, that it may give seed to the sower and bread to the eater…” (Isaiah 55:10). “He gives snow like wool …” Psalms 147:16).

That is just a sampling of the Old Testament understanding of the importance of snow. Many of us don’t view snow as a treasure, not realizing how snow does things that rain cannot do. The fact is that snow is essential to humans as well as many forms of animal and plant life. We couldn’t live without the treasury of the snow.

Snow on the mountains locks up water during winter and releases it gradually during the summer. Rain comes all at once and is quickly gone, as many of us have experienced flooding in the past year. If that moisture came as snow, there would be no flooding, and melting snow would gradually provide water for plants and animals. Falling snow also has a cleaning effect, as Job 9:20 suggests.

In the winter, snow allows small animals like vols, moles, chipmunks, and field mice to feed on plants and insects they would not have access to in summer. They can even raise their young under the protection of snow. When the snow melts, larger animals can feed on these smaller ones, preserving the balance of the food chain. Even in winter, the larger animals can catch some of them because the snow does not block the sound of their scurrying. The whole food chain is affected by the treasury of the snow.

Snow formation is due to the water molecule’s design and not some accident. The polarity of the water molecule means it has positive and negative ends. That creates the beautiful snowflake shapes. As water freezes, the molecules latch onto each other, and the volume of the water expands. This allows lakes to freeze on the surface since the density of ice is lower than that of liquid water. Non-polar materials do not expand as they freeze.

Romans 1:20 tells us we can know there is a God through the things He has made. The treasury of the snow is an essential part of God’s design to allow life to survive.

— John N. Clayton © 2023

The Journey to Safety

The Journey to Safety of a Sea Turtle
Hatchling Sea Turtle Journey to Safety of the Ocean

We have often talked about the design of animals. Various animals act on what we often call “instinct.” Programmed into sea turtles is a journey to safety. When baby sea turtles hatch on the beach, they instinctively and quickly head to the ocean to escape the predators on land. Their mothers didn’t teach them to do that. It is programmed into them. When a kangaroo is born, it will instinctively journey to safety by climbing into its mother’s pouch. She does nothing to assist the tiny creature. Programming a specific action is very efficient, so we program computers to do specific tasks.

In contrast to programmed actions, there is free will. When we tell our children what to do, they may do something entirely different. The child can understand our instructions but still refuse to follow them. The reason is that the child finds other things he wants to do are more appealing.

The bottom line is that commanding actions is less efficient than programming those actions. A baby sea turtle, kangaroo, or robot will act in the way it is programmed. If you are a parent, you have realized that your child will not always do what you command. The question, then, is why didn’t God program humans to do what He wanted? Why did He give us free will? Programming us to act as He desired would have been much more efficient.

God commands us rather than programming us to do His will because He wants to have a relationship with us. Robots can be very efficient because they have specific functions programmed into them and will do what their designer intended. That is not true of humans. However, you can never have a real relationship with a robot. God wants to have a relationship with us. He knew what would happen when He created the first humans, but He did it anyway. We have rebelled and made a mess of our lives and our world. Hatred, war, and mayhem have been the results.

Why, then, did God choose to create us? To Him, having a relationship with us was worth the price. Jesus Christ came to Earth to restore the broken relationship. He was the perfect man, but at the same time, He was God in the flesh. He showed us how to have a loving relationship with God and each other. Then, He bore the punishment for our disobedience to restore the broken relationships.

We are not robots. We are God’s creation, in His image, with free will. We can choose the journey to safety or ignore God and choose our own path. God has made the journey to safety and peace available to us. Why choose the path to destruction?

— Roland Earnst © 2023

World of Life Beneath the Soil

World of Life Beneath the Soil - Earthworm
Earthworm
World of Life Beneath the Soil - Naked Mole-Rat
Naked Mole-Rat

An unknown world of life lurks beneath our feet, and we should be thankful that it does. A research report in the Proceedings of the National Academy of Sciences (PNAS) says that approximately 59% of all living species on Earth live in the soil. Because there are so many organisms living there and they are generally out of sight, scientists don’t know how many species exist in the world of life beneath the soil.

According to the report by Diana Wall of Colorado State University, Fort Collins, soil organisms support life above the soil in many ways. They make it possible for us to grow food, and they break down organic waste. We often think of earthworms, but there are also many smaller worm species. We seldom see various insects that spend their lives in the soil. However, we do see insects that live much of their lives under the ground as well as above. Those include ants, springtails, woodlice, and millipedes. We often think of some animals that live in the soil as pests, such as termites and nematodes. However, they serve the purpose of breaking down organic materials, helping to keep the world from filling up with waste.

Plants also live in the world of life beneath the soil. For example, fungi do not use photosynthesis like green plants, so they can survive in the darkness. Subterranean life forms include the least familiar amphibians, the caecilians, whose name means “blind ones.” Naked mole-rats live underground, and many other mammals spend at least part of their lives in subterranean darkness.

According to the report in PNAS, “soil is the most biodiverse singular habitat.” We don’t often think of the world of life beneath the soil, but we should thank God that He thought of it. Subterranean life makes it possible for life above ground to thrive and prosper. We see this incredible web of life as evidence of design.

— Roland Earnst © 2023

Reference: pnas.org