Animal Communication in Turtles

Animal Communication in Turtles
Arrau turtle swimming in a river

An interesting fact of science is that researchers investigate the natural world in terms of human actions. An excellent example of that is our understanding of animal communication. Recent studies have shown that turtles have a rather complex system of communication which researchers have missed because the communication is very low-pitched and quiet. The frequency of the turtle communication is below 20 hertz, putting it below human hearing limitations.

With new listening devices, researchers have found that baby turtles chirp to one another while they are still in their eggs. They discovered this communication in giant South American river turtles called arraus. The apparent purpose is to coordinate their hatching time. When all the baby turtles come out of their eggs at the same time, it dramatically improves their chances of making it to the river before being snatched by a predator. The researchers also found that mother turtles use sounds to respond to the calls of their young and shepherd them to the water.

You can add turtles to the growing list of animal communication with sounds above or below the frequencies that humans can hear. Examples of subsonic or ultrasonic communicators are whales, fish, bats, and numerous birds. God has designed life to have maximum survival potential. Being able to communicate is just one of the tools that animals have been given to enhance that objective.

— John N. Clayton © 2023

Reference: Lead research author Camila Ferrara of the Wildlife Conservation Society speaking to the Washington Post as reported in The Week magazine, February 3, 2023, page 22.

Every Life Form Benefits Humans

Every Life Form Benefits Humans

Genesis 1:31 tells us, “God saw everything that He had made, and behold, it was very good.” The creation is a carefully designed system that allows beauty and function, benefiting humans in every way. Every life form benefits humans in some way, but we may not understand how until we study all living things. Our websites and materials often point out surprising facts about how animals and plants benefit us.

Today we have many medicines, vaccines, and remedies for ailments derived from the creatures God created. However, many cures for human afflictions remain to be secured from other life forms that share the planet with us. Medical researchers are concerned that many creatures which might be able to help us cure disease and afflictions are becoming extinct because of the mismanagement of God’s creation.

Research on animal population changes from 1970 to 2018 shows that the number of birds, amphibians, reptiles, mammals, and fish declined by 69% during those years. The research was an exhaustive study of 5,230 species in 31,821 populations. The most significant loss was in Latin America and the Caribbean, where the decline was 94%. Africa was second with a loss of 66%.

The research also studied the causes of the decline in living things and found that overexploitation and habitat degradation were the main issues resulting in 70% of the loss. Pollution contributed to less than 10% of the decline. Thus, human greed and selfishness are causing most of the problems.

An old story tells about a man at the judgment asking God why He allowed him to die in a flood. God replied, “I sent you my workers with a canoe, a row boat, a motor boat, and an airboat, but you kept saying you were waiting for me to save you.” God’s creation design provides that every life form benefits humans. He has given us everything we need, from food to medicinal agents, but we continue to allow greed and selfishness to waste God’s provisions.

— John N. Clayton © 2023

Reference: March, 2023 issue of Population Connection magazine

Dry Farming and God’s Design

Dry Farming and God's Design
Grapevines growing in a Chilean desert

Vital resources are becoming less available because of careless human use of the resources God has given us. The most critical of these resources is water. California produces a third of the vegetables that Americans eat, and 80% of California’s water usage is for agriculture. Thirty-two of the fifty-eight counties in California did not receive enough rain to meet the needs of the crops planted in 2022. To supply the needed water, farmers pumped it from underground aquifers faster than those aquifers were being replenished. As a result, farmers may have to return to an ancient practice called dry farming.

Farmers in areas around the Mediterranean have been using dry farming for centuries. Indigenous people like the Hopi in Arizona have used dry farming methods for thousands of years. People grow grapes in many places worldwide, but irrigating them can take a lot of water. With dry farming techniques, a grapevine can send roots down six meters into the ground to get the water it needs. Other crops such as tomatoes, squash, potatoes, and corn can be grown by dry farming methods.

Dry farming means not watering from the top but planting early and allowing more space between plants so their roots can reach out for water. For example, when tomatoes are planted early, their roots will go deeper into the soil, reaching water and minerals that can improve the taste. Saving water and improving flavor are two advantages of dry farming. Other benefits include less erosion and fewer weeds, meaning less need for herbicides. Also, dry farming requires less equipment than irrigation farming. Disadvantages include reduced size of the vegetables and lower yield.

The design of plants that produce food for humans allows them to be grown with smaller amounts of water with winter rain or snow, more space, and careful timing of the planting. By looking at how God structured plant growth in arid areas, indigenous people learned long ago how to survive in the desert southwest. The changing climate may force us to study God’s design and change the way we grow our food to be good stewards of the resources God has given.

— John N. Clayton © 2023

Reference: Cover story in Science News for March 11, 2023, pages 16 -20.

Cells and Cities Show Purpose and Design

Cells and Cities Show Purpose and Design

Whether we live in a city or in the country, we all recognize that cities are hubs of activity that keep life going and hopefully thriving. A living cell is like a miniature city, and we see life functions in the cell that correlate with activities that maintain life in the city. We can learn some things by comparing cells and cities. 

A city has a boundary called the city limits, and cells have a membrane marking their outer boundary. At the city center, we have a city hall and courthouse storing vital information and sending out directives to keep the city functioning. Cells have a nucleus that performs similar functions. The nucleus contains DNA that stores all the information for constructing and controlling the cell’s components and, ultimately, the entire body. 

Both cells and cities must have a way to transport materials within their boundaries. In cities, streets, roads, and highways perform this function. Cells have a transportation system called the endoplasmic reticulum (ER) to move proteins around and perform other functions. Both cells and cities need an energy source to function. Cities get their energy needs from fossil fuels, solar cells, and electrical generators. Mitochondria, “the powerhouse of the cell,” convert food calories into chemical and heat energy to maintain the cell’s life. 

Garbage trucks and sewers remove waste in the city. Cells have structures called lysosomes filled with digestive enzymes that eliminate toxic materials. Cities have factories that produce the products people need. Protein factories in the cell are called ribosomes, which manufacture new structures according to the genetic instructions in the DNA. 

While the U.S. Postal Service and companies such as UPS and FedEx transport materials between cities, the Golgi apparatus does that for the cells. For example, Golgi bodies in the pancreas package insulin for transport to other cells, allowing them to convert sugar into energy. Cells and cities need places to store essential commodities, and vacuoles perform that function in the cells. 

We live in a city that was not built by random chance. Our city has a history of design that allowed Niles, Michigan, to be founded and developed. Just as Niles was not merely a product of chance, so too the cell is not an accident. In this comparison, we have greatly oversimplified our explanation of the cell functions since cells are even more complex than cities. If cities require design and purpose by intelligent beings, living cells give strong evidence of purpose and design by a wise creator God.

— John N. Clayton © 2023

Inspired by: “Cells function like miniature cities” by Sheryl Myers in the Herald Bulletin of Anderson, Indiana, February 25, 2023 

Biblical Instruction for Good Mental Health

Biblical Instruction for Good Mental Health - Jesus Sermon on the Mount
Jesus’ Sermon on the Mount

Yesterday we looked at Joseph in the Old Testament and how his approach to life gave him good mental health and made his life purposeful and productive. In the New Testament, we see even better and more direct biblical instruction for good mental health.

The classic New Testament example is the teachings of Jesus Christ in the Sermon on the Mount (Matthew 5-7). Everything Jesus teaches in those three chapters is a recipe for good mental health. For example, telling people to avoid anger and harsh language (Matthew 5:21-22) is essential biblical instruction for good mental health. Avoiding sensual materials and associations is a proven way to prevent sexual misconduct (verses 27-28). Avoiding oaths and promises that you may be unable to fulfill is also essential (verses 33-37).

In Matthew 5:38-48, Jesus talks about resolving human conflict. How many of us have been upset by those we disagree with, allowing that to lead to bad mental health? Revenge, hate, and retaliation can eat at our mental stability in destructive ways. In verse 44, Jesus uses the word “agapao” for how we should regard even our enemies. That word is translated as “love” in the Bible, but it means considering the other person of incredible worth. Then chapter six begins with a strong teaching about the importance of forgiveness.

One of the essential parts of the teachings of Christ is His approach to things, wealth, and possessions. Starting with Matthew 6:19 and continuing through verse 34, Jesus talks about how our lives cannot be consumed with getting rich or having material things. So why do billionaires have a poor mental health track record? Paul made a great statement about good mental health in Philippians 4:11-13 when he said, “…I have learned in whatever state I am to be content. I know how to be rich or poor, how to be full or hungry, and how to suffer need.”

Jesus continues His discussion in Matthew 7 by talking about judging and the importance of not being critical of others. One of the significant mental benefits of authentic Christianity is its capacity to remove guilt from our minds. Baptism is a wonderful tool to leave our sins behind and live a new life. Romans 6-8 gives essential biblical instruction for good mental health by teaching us how to become free of the guilt that will destroy us mentally and spiritually.

The real tragedy is that many of us have had guilt and other mentally destructive teachings crammed down our throats. Jesus wants us to have good mental health and tells us how to achieve it. We need to listen to Jesus and study the life formula He gives us in His Word.

— John N. Clayton © 2023

Joseph’s Example of Good Mental Health

Josephs Example of Good Mental Health
Joseph in Prison

Our culture is just beginning to understand the importance of mental health. We are reminded of the consequences of ignoring mental health issues every time we hear about a senseless shooting of innocent people. In reality, there have always been people who are mentally ill. A careful study of the Bible gives some excellent instructions about how to have good mental health and some great examples of both good and bad mental health cases. One great positive Old Testament example is Joseph’s example of good mental health.

In Genesis 37-45. Joseph faced significant problems that could have caused great mental pain, perhaps leading to suicide or at least lashing out in angry retribution. How he dealt with life’s trials gives us a good model. Let’s examine four hardships Joseph faced that could have affected his mental health and how he handled them with a positive result.

#1. JOSEPH SUFFERED BECAUSE OF WHAT OTHER PEOPLE DID. Joseph’s father used bad judgment when he showed a preference for Joseph. That caused Joseph’s brothers to become jealous and consider killing him. Instead, they sold him into slavery, where he ended up as a slave in the household of a wealthy man named Potiphar (Genesis 37:36). Potiphar’s wife made a sexual pass at Joseph (Genesis 39:7), and he fled from her. She lied and accused Joseph of trying to rape her, and Potiphar put him in prison. Joseph managed his imprisonment well, but a fellow prisoner he helped reneged on his promise to Joseph. So Joseph remained in prison for two more years.

Have you had people do bad things to you? Of course, you have! But Joseph didn’t allow bitterness or retaliation to overwhelm him and destroy his mental health. We need to learn from Joseph’s example of good mental health.

#2. JOSEPH KEPT HIS INTEGRITY IN THE FACE OF THOSE WHO LET HIM DOWN. Joseph accepted a better position in the prison (Genesis 39:22-23) and used that to help others. He didn’t dwell on revenge or lose his integrity. We must avoid dwelling on the negatives in our lives and not become obsessed with getting even.

#3. JOSEPH NEVER FORGOT HIS PAST AND THE GOOD HE HAD RECEIVED FROM GOD. In Genesis 41:51, Joseph named his first son “Manasseh,” meaning that he did not dwell on his hardships, and his second son “Ephraim,” referring to God’s blessings. When he had a chance to get even with his brothers, he forgave them and met their needs physically and emotionally. Even though affected by prejudice, Joseph’s example of good mental health (Genesis 32:32) never wavered but maintained integrity and a positive spirit. We need to do the same.

#4 JOSEPH INTERPRETED WHAT HAD HAPPENED TO HIM AS A TOOL OF GOD TO GIVE HIS LIFE MEANING. One of the great benefits of trusting and following God is that it gives purpose to our lives. In Genesis 45:1-5 Joseph saw purpose in all that had happened to him. Atheism, secularism, and naturalism do not provide a meaningful, useful purpose to life.

The story of Joseph’s example of good mental health is just one example of many biblical accounts showing the importance of trusting God to find a purposeful life. Tomorrow we will look at this subject in the New Testament.

— John N. Clayton © 2023

Microbes in Hydrothermal Deposits

Microbes in Hydrothermal Deposits
Undersea Hydrothermal Vent

One of the fascinating things about research on microorganisms is the diversity of species and environments in which they live. Superheated material at temperatures of up to 400 degrees celsius is extruded from vents in the deep ocean. When it contacts the cold seawater, it produces porous rocks in the form called “chimneys.” This rock differs from rocks on Earth’s surface due to the pressure at those depths. Researchers from Portland State University and the University of Wisconsin found diverse microbes in hydrothermal deposits.

The researchers sampled 40 rock communities and found 3,635 species of microbes in hydrothermal deposits. The researchers were amazed at how diverse these bacterial communities are. The lead researcher Anna-Louise Reysenbach said, “At one volcano, there was so much new diversity that we hadn’t seen elsewhere.” Not only did they find new species, but they also discovered two new phyla and at least 500 new genera. In addition, the scientists found that New Zealand samples differed from those found in other places. 

The design of life is so flexible that you can find living things in locations where you would not expect life to survive. It is important to note that scientists are classifying the microbes in hydrothermal deposits using the same phyla, genera, and species categories they use for life on Earth’s surface. The bacteria are not so different from surface bacteria, but they can live in environments of extreme pressures and temperatures. 

We know that life forms exist in extremely cold and hot places on Earth. The design of life is exquisite, and these microorganisms support the higher life forms familiar to us. This study implies that life could exist elsewhere in the cosmos if God chose to put it there. However, there is a world of difference between finding a microbe on a distant planet or satellite and finding a sentient alien being as portrayed on the movie screen. The complexity of life and the amazing design of our own bodies shows God’s creative wisdom. I am “fearfully and wonderfully made” (Psalms 139:14). As we learn more about the diverse places where life can exist, we are amazed at how sophisticated life design is.

— John N. Clayton © 2023

References: National Science Foundation Research News for March 7, 2023, and the journal Microbiome

Christ’s Teachings Are Key to Good Mental Health

Christ’s Teachings Are Key to Good Mental Health - Not Gun Violence

Every day we hear a new report about someone killing a number of people in a way that raises the question of whether the killer is mentally ill. We can’t know what goes on in the head of someone who pulls out an assault rifle and starts killing a bunch of strangers. The fact is that even innocent children have been the victims of someone who had no logical motive for shooting them. However, Christ’s teachings are key to good mental health.

Mental illness has always been an issue for humans, but the increase we have seen in recent years has not just been because of the greater availability of guns. It has also been catalyzed by poor mental health in our culture. The rejection of God and the denigration of Christianity are factors in that mental health crisis.

Read Matthew 5-7 and ask yourself why Jesus told His followers to do the things He taught them. In the first 12 verses of Matthew 5, known as “the beatitudes,” Christ’s teachings are key to good mental health. If you choose to comfort, exhibit meekness, strive for purity, show mercy, and be a peacemaker, God will bless you with stability and good mental health.

In verses 21-25, Jesus talks about relationships and the importance of not carrying grudges and long-term conflicts. Next, in verses 27-32, Christ deals with sexual issues and the importance of not looking for sex in a context that violates God’s plan for marriage. Finally, in verses 38-48, He talks about handling conflict and avoiding acts of revenge and retribution.

In Matthew 6, Christ deals with materialism and the importance of trusting God to care for our basic needs. A person who follows all that Jesus taught will be on the way to good mental health. The most common cause of mental illness is a failure to live as God has told us to live. Of course, there are other causes of mental illness, such as disease, injuries, and environmental factors, but even those causes would be reduced or eliminated if we would live as Christ told us to live.

There are multiple causes for the violence, including gun violence, plaguing America today. Hypocrisy on the part of those who claim to be Christians is part of the problem, but it doesn’t dilute the value of what Jesus taught. The fact that Christ’s teachings are key to good mental health is another evidence of the validity of Christianity and the inspiration of the Bible.

— John N. Clayton © 2023

Convergent Evolution or Design?

Convergent Evolution or Design?
Dolphin
Convergent Evolution or Design?
Bat

Animals that are not closely related can display very similar characteristics. Evolutionary scientists say that these similar traits demonstrate “convergent evolution.”

According to Darwinian evolution, all life forms can trace their heritage to a common ancestor. From that first life form, branches diverged to form a tree of life. At some point, those branches diverge again. When two life forms develop a similar characteristic that their last common ancestor did not have, that is convergent evolution. There are many examples, such as dolphins and bats. Both use echolocation for navigating or finding food, but they cannot be closely related.

Animals that can fly include insects, birds, and mammals such as bats. Nobody claims that these creatures are closely related. However, they all use aerodynamic principles and wings to defy gravity. We see similar mouthparts in animals that suck blood, such as mosquitos and fleas. Both are insects but not closely related. We can say the same for insects that suck nectar from flowers, such as bees and butterflies.

Many plants produce edible fruits to encourage animals to scatter their seeds. That includes tomatoes, apples, and raspberries – which are not related. We find similar types of eyes in very dissimilar animals. Birds, butterflies, and even some plants use structural coloration, even though they are unrelated and live in very different ecosystems.

According to evolutionary scientists, one of the most dramatic examples of convergent evolution is found in thousands of plants that use ants to disperse their seeds. The plants attach “food bodies” called elaiosomes to their seeds. The elaiosomes are rich in nutrients to attract ants. The ants carry the seeds to their colonies, where they eat the elaiosomes and discard the seeds. How did over 11,000 plant species develop this technique more than 100 times independently? Evolutionists call it convergent evolution. Could it perhaps be evidence for design in plants?

Evolutionary scientists often give pat answers to explain how various species evolved the same traits independently. However, they say that all of these and many more examples of similarities in unrelated animals show convergent evolution. In other words, evolution is intelligent and uses the same ideas in various species. Or we could say that an intelligent Creator has used the same creative ideas in multiple species. Which is the best explanation? Evidence for design in living things calls for a Designer of life.

— Roland Earnst © 2023

The Fascinating World of Insects

The Fascinating World of Insects
Bird (purple roller) tossing and eating a grasshopper

This week, we have talked about the fascinating world of insects. My least favorite insects are mosquitoes. However, we have pointed out that mosquitoes perform valuable functions. Common flies are probably the second least favorite on my list, but even those flies have a purpose.

WHAT GOOD ARE FLIES?

Of course, there must be some way to control insect populations, especially mosquitoes and flies. Humans create pesticides to manage them, but that doesn’t work very well. Insects evolve resistance to pesticides, and those pest-killing chemicals also kill helpful insects and cause harm to the birds and animals that eat them. Natural insect control by birds, bats, and even insects is safer and often more effective.

BIRDS ARE BETTER THAN PESTICIDES

INSECTS CONTROL INSECTS

Some insects can also serve as nutritious, high-protein food for people. In addition, insects support the life of plants, animals, and humans in many ways.

INSECTS AS FOOD

WHY DO WE NEED INSECTS?

We can fear insects (entomophobia) or hate them, but we might as well love them because the fascinating world of insects is part of life on Earth. Thank God that we have insects to provide food for birds and other animals while pollinating the plants that provide food for us. Here is a final thought about “bugs.”

HOW MANY BUGS ARE IN YOUR HOME?