Kakarraturls Swimming Through the Sand

Kakarraturls Swimming Through the Sand
Australian Outback

Life in the desert has unique problems, requiring special plant and animal designs. Life forms, including worms, trees, grass, and insects, work together in non-desert environments. Who keeps the sand clean and aerated in a desert, allowing desert life forms to survive? Blind moles, known as Kakarraturls, swimming through the sand, spend almost their entire life beneath the dunes of Australia’s northern deserts.

Kakarraturls are very small, about four inches long, and weigh about an ounce. Their flipper-like front feet allow them to “swim” through the sand. Their oxygen requirements are small, so they can breathe the limited amount of air flowing between sand grains. They have silky golden fur to survive the cold temperatures of the desert while handling very hot conditions. Because they live underground, they have few predators. Since they are marsupials, they care for their young in a pouch. However, the pouch opens at the rear so it will not become filled by the kakarraturls swimming through the sand.

Every environment on Earth has a keystone species that allows it to sustain life. The desert is a very challenging environment, but the kakarraturl is designed to survive and maintain the quality of the desert sand. Just as our moles eat grubs and maintain the balance between worms and healthy vegetation above the ground, the kakarraturl also controls ants, beetles, and other insects by eating their larvae and pupae under the sand.

As scientists expand their research into remote areas where little has been mapped, they find unusual forms of life, such as the kakarraturls swimming through the sand. The design of our planet is not an accident. It is the handiwork of an intelligence that put much care into the creation of living things and diverse environments. The Bible tells us we can know there is a God through the things He has made, and the kakarraturl is another example of that.

— John N. Clayton © 2024
Reference: “Northern marsupial mole” in wikipedia.com and kakarraturl pictures on vimeo.com

How a Delicate Root Can Penetrate Hard Rock

How a Delicate Root Can Penetrate Hard Rock

We have all seen plants growing through cracks in concrete or bedrock and wondered how a delicate root can penetrate hard rock. Recent research has shown that the root jackhammer process is highly complex.

In a paper published in the journal Current Biology, a group of researchers discovered some of the secrets of how a delicate root can penetrate hard rock. For one thing, the optimum angle for the root tip to attack is 90 degrees. Striking the hard object at a different angle could cause the root to deflect. A protein called OsAUX1 keeps the root tip pointed down.

Another way that roots are similar to a jackhammer is that the root hairs provide an anchor for the root, and OsAUX1 causes more root hairs to grow. If you have ever seen a worker using a jackhammer, you know that someone has to hold it tight, or it will bounce on the material’s surface instead of penetrating.

Another protein that helps explain how a delicate root can penetrate hard rock is PIEZO1. If the root continued to grow quickly when it contacts a rigid material, it would likely bend or break. PIEZO1 signals the root to slow down when it encounters a hard barrier. This “touch-sensitive” protein shows more engineering involved in root growth. In all, 14 proteins, plus genes, promoters, hormones, and tissues enable roots to perform their amazing stunts.

The importance of this design is Earth-shattering, or should we say rock-shattering. It explains how soil is produced in an area where rock dominates Earth’s surface, as in a lava flow or an intrusive rock like granite. The process is like a jackhammer in which root caps use weaknesses in the host rock to penetrate and break the rock into smaller pieces so plants can secure the nutrients they need.

Some plants in unusual environments don’t use roots in the same way. Plants living in ocean environments or along sand bars, such as mangroves, have a different process to sustain themselves. Air ferns and epiphytes don’t have the same kind of root system as a maple tree. The diversity of plant life and how each type of plant handles its environment is a great testimony to design and the wisdom of the Creator.

— John N. Clayton © 2024
Reference: Evolution News & Science Today

The Green Darner Dragonfly Is a Mosquito Hawk

The Green Darner Dragonfly Is a Mosquito Hawk

The green darner dragonfly (Anax junius) is common across North America and is the state insect of Washington. It is one of 5,000 dragonfly species but has some unique properties that make it a “mosquito hawk.”

The green darner dragonfly gets its name from its long, thin, needle-like body that resembles a darning needle. These dragonflies begin life as eggs in quiet, fresh water. The female attaches the eggs to plants underwater. She will drop them into shallow water if there are no plants available. Eventually, the eggs hatch into a nymph stage.

The green darner dragonfly can stay in the nymph stage for a few days or as long as four years until it attaches itself to a plant above water. Then, an adult dragonfly will emerge in a few days and leave behind the nymph skin, called the exuvia.

The adult dragonfly’s primary food is mosquitos, devouring vast numbers of them. The design of the green darner dragonfly’s two huge compound eyes consists of thousands of telescopic lenses, giving it a 360-degree field of view. It also has three simple eyes, which all work together. The individually powered wings are two inches long, allowing the insect to hover or travel in a straight line at roughly 10 miles per hour.

If weather becomes an issue, green darner dragonflies will migrate south, as monarch butterflies do, producing offspring in Mexico, the Caribbean, or the southern United States. Like monarch butterflies, the offspring of the green darner dragonflies will fly back to the north, but unlike monarchs, they eat vast numbers of mosquitoes as they travel.

These multi-generational insect migrations show system design. One generation does not live long enough to complete the migration, and the insects can’t teach their eggs and larvae what to do and where to go. The migrations benefit the balance of nature in the various ecosystems more than the insects themselves. Mere chance is not an adequate explanation. We suggest that the green darner dragonfly is another evidence of a Creator.

— John N. Clayton © 2024
Reference: Linda Weiford in The Spokesman-Review, Spokane, Washington.

Protecting Parasites from Extinction

Protecting Parasites from Extinction - Cat and Mouse

We tend to view parasites as destructive, even repulsive, unwanted nuisances. However, scientists are finding that parasites often perform beneficial roles in the ecosystem. Some scientists think we should be protecting parasites from extinction.

Scientists are concerned that we have not studied the roles of parasites in maintaining a balanced ecosystem. For example, a parasite known as Toxoplasma gondii infects mice, causing them to lose their fear of cats. Cats have an acid in their gut that Toxoplasma gondii needs to reproduce, so the mouse is an intermediate host for the parasite to get into the cat. This appears to be a highly designed system in which a parasite controls the mouse population through cats.

Kayce Bell of the Los Angeles County Natural History Museum said, “If you remove something from an ecosystem, we cannot foresee what the consequences will be.” That is true of familiar plants and animals but may also be true of parasites. Moreover, it seems that some parasites keep other parasites under control. In 2020, scientists who study parasites published a paper in the journal Biological Conservation calling for protecting parasites from extinction, beginning with a study of what parasites exist.

Scientists estimate that 40% of all known animal species on Earth are parasites. The bottom line is that we don’t understand the role parasites play in the natural world. The fact that we don’t know what beneficial things parasites do is a challenge as we struggle to conserve ecosystems worldwide. Everywhere we look, we see a system design that testifies to a Designer.

— John N. Clayton © 2024
Reference: “The Problem with Parasites” in Discover magazine for September/October 2024, pages 21-28

Alcohol Damages the Human Body

Alcohol Damages the Human Body

In recent years, an interesting change has taken place in the public’s reaction to smoking. When I was a child, I remember that nearly all adults smoked, and so did many teenagers. Smoking bans are enforced in many places because medical science has proven smoking’s adverse health effects. People have recognized that they should avoid smoking. Now, we have medical evidence that alcohol damages the human body, and people need to acknowledge that.

Dr. Douglas Zipes is an internationally acclaimed cardiologist, professor, author, inventor, and authority on pacing and electrophysiology (heart rhythms). He pointed out the similarities between the medical data for alcohol and cigarettes. He wrote that no amount of alcohol is beneficial, and any amount of alcohol is harmful to your heart and other organs.

Alcohol (ethanol) as a drug is very destructive to humans. It is disturbing that the music industry, especially country music, has glorified alcohol consumption. We all experience enormous pressure to drink at parties and celebrations. Drunkenness is often a joke in movies and television shows, and it is the punchline in many songs. My personal experience has been that alcohol is a family destroyer. Cocktail hour was a significant part of my parent’s life. I would usually hide because I knew the result of their drinking. My college roommate drank until it got him kicked out. My younger brother drank until it killed him.

I got in trouble as a chemistry teacher when I pointed out to my students that “intoxicated” refers to the toxic nature of alcohol. Still, it is true that alcohol damages the human body. Christians believe that the body is the dwelling place of God’s spirit. (See 1 Corinthians 3:16.) Comparisons between today’s alcoholic beverages and the wine of Christ’s day show a sharp contrast. Distillation was not available in Jesus’ day, so the alcohol content was much lower, and alcohol served to make the water potable. Today, the higher alcohol concentrations make it a recreational drug that tears up families, destroys marriages, and is now known to damage the body.

Like smoking, alcohol is ingrained in our culture. It will be an uphill battle to get people to understand that taking care of themselves includes not using a substance that has no benefit for our bodies and even damages them. Christians must take the lead in the long battle to at least moderate the consumption of alcohol and someday eliminate it.

— John N. Clayton © 2024
Reference: Dr. Douglas Zipes in the Saturday Evening Post for September/October 2024, page 54

Problems Our Ancestors Had in Securing Food

Problems Our Ancestors Had in Securing Food - Goats

In our day of domesticated cattle, we may not appreciate the problems our ancestors had in securing food and other essentials. The Bible and the fossil record agree that the first humans were gatherers, eating only things that could be secured by hand, primarily plants. Genesis 4:2 indicates that Abel was a keeper of the flocks, probably sheep. In Genesis 9:3, God says, “Everything that lives and moves will be food for you,” but verse 2 says that all the animals will be afraid of humans. Like many biblical passages, we are left with questions, so we can look to other methods for clarification. The fossil record and archaeological evidence do that for us.

There is a great deal of evidence that humans were gatherers before hunting animals became a method of getting food. The Bible does not tell us how Abel secured the flocks of Genesis 4:2, but the domestication of wild goats and sheep clearly occurred. Genesis 15:9 is the first mention of goats in the Bible, but recent DNA evidence shows that goats were domesticated in significant numbers by 8200 B.C. Goats provided milk and meat, but they also provided other valuable materials, including hair, hides, and sinew for use as clothing. Ancient people used goat bones as tools and their dung as fuel for fires. Goats were much easier to raise than sheep or other animals. Goats can eat about anything and survive in virtually any terrain. They were the perfect animals to meet the needs of early humans.

Despite the problems our ancestors had in securing food, the message here is plain. God has met every NEED that humans have. We are talking about needs, not wants. Some things we might like to have are not needs, and needs can sometimes be secured only by work. God told Adam, “In the sweat of your face, you will eat bread” (Genesis 3:19). God has made it available, but we must work to secure what we need. We know that God will bless us when we do the work He has given us to do.

— John N. Clayton © 2024

Elephant Communication System

Elephant Communication System
Elephant herd with Mt. Kilimanjaro in the background

Every animal has a way of communicating with others of its species to find food, for defense, or for mating. Each animal’s design includes a unique method of communication, and some of the methods are astounding. One of those is the elephant communication system. Recent studies show that African elephants engage in a type of communication previously unknown in nonhuman animals.

Elephants can hear sounds that humans cannot hear. Physics books tell us that humans can hear sounds between 20 hertz (cycles per second) and 20,000 hertz. This varies from person to person, with smaller humans hearing higher frequencies but not hearing lower ones and vice-versa for larger humans. In my physics classroom, I demonstrated this by producing frequencies between 20 and 20,000 hertz and noting that different students heard different sounds – sometimes painfully. I rarely had a student who could hear 20 hertz. Elephants can hear sounds as low as 5 hertz.

How does this low-frequency ability affect the elephant’s communication system? High-frequency sounds do not travel very far. Some bird species use high frequencies for a wide range of communications, but the sound travels only short distances. The low frequency of an elephant can travel over 1.5 miles. Elephant herds frequently split up to find food or water, and they convey their location to other groups from a distance.

The aspect of the elephant communication system that was previously unknown in animals is that they can attach vocal labels, similar to names, to individual elephants. They use a specific low-frequency sound to address a specific elephant. Their communication is so fine-tuned that they can send out a sound that only one elephant in a nearby herd responds to. Other elephants in both herds continue grazing and ignore the message.

The design of the elephant communication system is incredible and unique. Researchers are studying their apparatus to hear and send sounds, leading to a new understanding of how all animals communicate. Romans 1:20 tells us, “We can know there is a God through the things He has made.” Elephants and their communication system testify to that fact.

— John N. Clayton © 2024
Reference: “Elephants Call Their Relatives By Name Across the Savanna” in the September 2024 issue of Scientific American

Dinosaur Fossils and Human Values

Dinosaur Fossils and Human Values
Protoceratops Skeleton

By the end of July 2024, I had personally received 98 written requests for financial help to address human needs. That is in addition to numerous phone calls and emails, and I am sure most of the needs are real. Pathetic pictures of starving children, people needing medical attention, and people victimized by war and greed tug at the heartstrings, but on a teacher’s pension, I cannot solve all of these issues. At the same time, we live in a world of corruption and badly distorted values, as demonstrated by the price of dinosaur fossils.

The largest and most complete stegosaurus fossil ever found was sold to a private collector for $44,600,000. A “mystery buyer” paid $12.4 million for a velociraptor skeleton, and in 2020, a Tyrannosaurus rex skeleton known as Stan sold for $31,800,000. While the academic community laments that these skeletons are lost to science, the more significant issue is what the price of dinosaur fossils says about human values. The Christian concept of love expressed by the Greek word “agape” permeates the teachings of Christ, but today, people vilify Christianity and ridicule the plea to love one another.

The media takes great delight in stories of the abuses of some who have claimed to be Christians. Sadly, some religious leaders spend massive amounts of money on religious structures, airplanes, cars, and personal homes, as non-believers spend excessive amounts on dinosaur fossils and entertainment.

Most of the people feeding needy children are motivated by their understanding of Jesus’ teachings. Digging wells so people aren’t forced to drink polluted water is almost entirely the work of people who express their faith in Christ and His teachings. Many followers of Jesus quietly take what little they have and use it to relieve human suffering.

In Matthew 25:31-46, Jesus indicates how God looks at our situation. Dedicated Christians who have the hope of eternal life prioritize addressing human needs. Those who use what God has loaned them to have a dinosaur skeleton in their private collection will learn that their lives are just as dead as the dinosaurs on which they spent their resources.

— John N. Clayton © 2024
Reference: The money paid for dinosaur fossils is in The Week for August 2, 2024, page 11.

Trees Are Affected by Smoke

Trees Are Affected by Smoke
Fire in a Ponderosa Pine Forest

Smoke from wildfires has been a fact of life for virtually everyone. Even here in Michigan, we have seen smoke from the fires on the West Coast. At times, it has been dense enough that some folks with respiratory illnesses have had to stay inside and use air purifiers to breathe. Researchers at Colorado State University have found that even trees are affected by smoke, but they have a system designed into them to avoid damage that smoke can cause.

Plants have pores called stomata on their leaves, which do the opposite of our lungs by taking in carbon dioxide and expelling oxygen. However, taking in smoke could interfere with this process. The researchers found that when smoke wafted across ponderosa pines, the trees responded by closing their stomata, essentially holding their breath.

Smoke in the air is not a new feature in the natural world. Fires are expected whenever there are forests and dry weather, even without human carelessness. Since trees are affected by smoke, they have a designed response to what might damage their ability to take in carbon dioxide. This is just one more example of the incredible thought and planning that went into the creation.

Genesis 1:11-12 tells us that God created the fruit tree, but as we look deeper into the makeup of trees, we see the handiwork of God displayed in this remarkable design. Research is ongoing to see if this is true of all plants, including those we depend on for food. This question becomes very important with the increase in wildfires in the past two years.

— John N. Clayton © 2024
Reference: The Week for August 30, 2024, page 21.

New Data on Neanderthals

New Data on Neanderthals

In 1864, a research paper was distributed in the scientific community announcing the discovery of a form of ancient humans called Homo neanderthalensis. The artistic reconstructions showed ape-like humans, and evolutionists called it a missing link proving human evolution from apes. The artistic reconstructions were inaccurate. More advanced scientific tools have given us new data on Neanderthals, providing a better picture of what they were like.

Past research has not shown that Neanderthals lived together in communities. However, Neanderthal DNA in Siberia indicates a possible community, and some 600 footprints recently found near Normandy, France, indicate a group of adults with children and teenagers. The new data on Neanderthals gives evidence that they formed tight-knit communities. Another interesting discovery is that the communities cared for individuals with deformities or severe injuries for many years. Neanderthal burials indicate that they showed special care to children.

We can learn many lessons from recent studies that provide new data on Neanderthals. One thing we learned is to avoid jumping to conclusions too quickly. One of my favorite lines I heard during my graduate work was, “Always be sure your data conforms to your conclusions.” The point was and is that people take what they already believe and then work to find ways to support that belief. The media jumped on early finds of Neanderthals, and their depictions gave an unclear picture of what they were like.

For people who have religious convictions about the history of humans, the same problem exists. The fact that Neanderthals clearly lived more than 6,000 years ago flies in the face of some denominational teachings. The point is that the Bible is silent on how long ago Adam lived. There is also a tendency to make Adam in our physical image when the Bible says Adam was created in God’s spiritual image. Biblical literature may show Adam with light skin and blue eyes, but that is almost certainly not what Adam looked like.

You and I are created in God’s image. That means we all have equal value and demonstrate spiritual characteristics and talents. These include creative ability in art and music, the capacity to worship, empathy and sympathy, and guilt, which have nothing to do with our physical or racial makeup. New data on Neanderthals shows that they demonstrated some of those characteristics, and we have some Neanderthal markers in our DNA.

— John N. Clayton © 2024
Reference: “Family Ties” in Discover magazine, July/August 2024, pages 24-28.