Animals Archives

March 28, 2023March 27, 2023

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.

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

March 22, 2023March 21, 2023

Microbes in Hydrothermal Deposits

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.

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

March 10, 2023February 28, 2023

Convergent Evolution or Design?

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.

March 9, 2023February 28, 2023

The Fascinating World of Insects

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?

March 8, 2023February 28, 2023

Beautiful Insects – Butterflies and Moths

Insects can be beautiful. Today we want to consider a family of insects with about 180,000 described species. They include many of the most beautiful insects on Earth. They are in the Lepidoptera order, and we call them butterflies and moths.

Before they become butterflies and moths, these insects go through a larval stage as caterpillars.

KEYSTONE PLANTS AND CATERPILLARS
WALNUT SPHINX ACCORDION WORM

When the caterpillar has eaten its fill of nutrients from its favorite plant, it goes into a pupal stage and through a complete metamorphosis to become a butterfly or a moth. It is one of the most amazing transformations in nature.

THE INCREDIBLE BEAUTY OF MOTHS
LEARNING ABOUT LEPIDOPTERA
BUTTERFLY WING DESIGN
PAINTED LADIES OUT MIGRATE MONARCHS
THINKING LIKE A BUTTERFLY

The English word “metamorphosis” is from a Greek word meaning “transformation.” So the caterpillar goes through a dramatic change in form and lifestyle. That word is used in Matthew 17:2 and Mark 9:2 to describe the “transfiguration” of Jesus Christ on the mountain where He met with Moses and Elijah. Paul used the word in Romans 12:2, where he describes the “renewing of your mind” to live a beautiful life according to the will of God.

There is much more to say about beautiful insects, but we will conclude our review of these fascinating creatures tomorrow.

March 7, 2023February 28, 2023

The Largest Insect Family

Many people fear insects, but those little critters are essential for life on Earth. Although they can be pests, insects perform valuable services, from pollinating the plants that supply our food to removing dead animal carcasses and waste. Yesterday, we looked at mosquitoes and ants. Today we consider the largest insect family – beetles.

We said that even though an estimated 20,000 ant species live almost everywhere on Earth, they are not the largest insect family. Beetle species make up more than one-third of the nearly one million scientifically identified species of insects worldwide. Here are some of the things we have written about beetles.

BEETLES THAT RECYCLE CARCASSES
BEETLES THAT DISPOSE OF ANIMAL WASTE
FIRE CHASING BEETLES
BEETLES THAT WALK UPSIDE DOWN UNDERWATER
JAWBREAKER BEETLES
STINKY BEETLES

Someone said God must love beetles because He made so many of them. Although we might think that beetles such as stink bugs are ugly, many are known for their beauty. However, the most beautiful insects are the ones we will examine tomorrow.

March 6, 2023February 28, 2023

Fear of Insects – Entomophobia

The fear of insects is called entomophobia. It’s a phobia affecting nineteen million Americans, making it one of the top fears people have. The insects people most commonly fear are ants, beetles, grasshoppers, caterpillars, and even moths and butterflies. If I selected the insects I dislike the most, they would probably be mosquitoes – at least the female ones. However, we must realize that insects of all varieties are essential for human life, and even mosquitoes serve a useful purpose.

On this website, we have written about insects many times. Instead of having a fear of insects, we would do well to study and learn from them. The following links to some of the insect articles we have posted can help you see that our six-legged friends are fascinating. Let’s start with those dreaded mosquitoes.

WHY DO WE HAVE MOSQUITOES?
SOLUTIONS TO MOSQUITO PROBLEMS
DANGEROUS ANIMALS THAT WE FEAR

Ants are another family of insects we can’t ignore.

ANTS ARE ESSENTIAL FOR LIFE ON EARTH
ANT ARMOR
ANTS USING TOOLS
ANTS USING VIBRATING SAWS
ANTS USING SEALED DOORWAYS
ANTS OF THE SAHARA DESERT

Ants and mosquitoes live on every continent except Antarctica. Entomologists estimate there are 20,000 species of ants, but only 13,800 have so far been studied and classified. However, ants don’t hold the record for the largest number of insect species. That honor belongs to another insect family, which we will look at tomorrow.

March 3, 2023March 3, 2023

Bacterial Cells in the Human Body

Trillions of bacteria live in the intestines of every person. Perhaps more disturbing is the suggestion that there are ten times as many bacterial cells in the human body as there are human cells. Remember that bacterial cells are smaller than human cells, but still, that’s a lot. Nobody has actually counted them all, but scientists are certain that the bacterial cells outnumber our body cells. Even though that may sound shocking, the truth is we couldn’t live without them. The collection of microbes inside you is called the microbiome, and it makes food digestion possible and plays an essential role in our immune system.

Every time we eat food, we take in bacteria. Your gut biome acts as the first line of defense in a fully-functional immune response. People often refer to “good bacteria” and “bad bacteria.” That distinction may be misleading because the helpful or harmful ways of those microbes may depend on the circumstances.

Gut bacteria work in the breakdown of carbohydrates. Research indicates that obese people have less diversity in their gut bacteria than lean people have. On the other hand, when gut bacteria digest foods such as eggs and beef, they produce a compound that can boost heart-disease risk. Some germs can make you sick, while others keep you healthy. Sometimes the same bacterial cells in the human body can do either, depending on circumstances.

Helicobacter pylori bacteria are known for causing ulcers in the digestive tract. They are present in the microbiome of half the world’s population. Most people don’t have a problem with stomach ulcers, but it is painful and dangerous for the small number who do. However, researchers have found that the absence of Helicobacter bacteria in the gut may lead to diseases of the esophagus, such as reflux and cancers. Other research has shown that Helicobacter species may help the immune system, even though they may lead to inflammation and ulcers.

So the “good” and “bad” distinction between bacteria may be a false dichotomy. Whether they are beneficial or harmful depends. Bacteria considered “bad” might be neutral or even helpful in certain situations. A person’s health status, stress, diet, and genetics all influence how we react to various bacterial cells in the human body.

Another beneficial use of bacteria could come from research into using them as a medical delivery system to regulate autoimmune diseases. There is a clear answer for those who consider bacteria as all bad and question why God would create them. As science continues to explore the complexity of the system of life, we see God’s wisdom in all of creation.

References: The journal Science Immunology and livescience.com HERE, HERE, and HERE.

March 1, 2023February 25, 2023

Do Animals Fall in Love?

Discover magazine carried a story titled “Fowls in Love” about two Canada geese nicknamed Arnold and Amelia. Many animals pair up to raise young or for protection. However, evolutionary survival of the fittest fails to explain animals sticking together when one of the pair becomes injured and unable to assist in survival. So do animals fall in love?

The Birdsey Cape Wildlife Center staff in Barnstable, Massachusetts, noticed the male goose limping. He had an open fracture that wouldn’t heal on its own. They caught Arnold and prepared to do surgery to repair his foot. The female goose observed the procedure through the clinic’s sliding glass door. When Arnold awoke from surgery, Amelia was allowed into the room, and she used her beak to preen his feathers. For the next 14 days, Amelia was at the center daily, sharing Arnold’s meals and spending time with him.

After Arnold was released, the staff observed the pair together for two weeks until they left with a passing flock of Canada geese. Do animals fall in love? The article writer concludes that the two geese were in love. The article ends with this statement by the veterinarian who did the surgery, “There has to be some internal motivating force that allows that animal to behave in a particular way, and we call it love – that internal driving force.”

This is a classic example of anthropomorphism, attaching human characteristics to an animal. The biblical concept of love is spelled out uniquely in the New Testament by the Greek word “agape,” meaning to consider the object of one’s attention to be of incredible worth. Jesus used agape in His teachings, and we find it in New Testament references to marriage. Human marriage is not just for survival.

We have numerous geese where we live on the St. Joseph river in Michigan. They are always in pairs, and getting near to one of them or their chicks invites an attack from the mate. Raccoons learn to avoid pairs but will go after an isolated goose or chick. Do animals fall in love, or is there a survival reason?

God has placed an instinctive drive in geese to maximize their chances of survival and success in raising young. The bond between Arnold and Amelia demonstrates how strong the instinctive drive is. It is not the biblical concept of love. When Jesus tells his followers to love their enemies and not resist evil (Matthew 5:38-45), He tells them to do something animals cannot do.

Reference: “Fowls in Love” in the January/February 2023 issue of Discover magazine, page 14

February 28, 2023February 25, 2023

Each Octopus Arm Moves as if it Has its Own Brain

What does it take to enable an octopus to use all eight arms efficiently? Each arm may be in contact with a different substance, and they are soft and pliable, so they can bend and twist in response to whatever stimuli they receive. As a result, each octopus arm moves as if it has its own brain.

Researchers recently discovered that the arms gather data and move independently or with other arms without consulting the octopus’s brain. The octopus has a central brain connected to a nerve ring that connects to each arm. In addition to the arms’ connections to the brain, a nerve connects each arm to another, located two arms away. This arrangement allows each arm to communicate directly with others and with the central brain. The arm’s connections to other arms allow rapid communication to function quickly and efficiently.

Researchers are still studying how the octopus puts all this together to move eight arms in a well-coordinated way. Roger Hanlon, a researcher with the Marine Biological Laboratory, said, “We are in that intriguing ‘mild state of confusion’ that is simultaneously perplexing and exhilarating when unexpected discoveries are revealed.”

God’s design of every form of life is amazing and offers much for science to study and learn. Our understanding of how nerves function and how the brain interprets the signals it receives from the nerves is still in a primitive stage. However, we know that each octopus arm moves as if it has its own brain, making the octopus a very complex and intelligent animal. We see God’s wisdom and creative ability displayed in every form of life.

References: Scientific American for March, 2023 pages 11-12 and the journal Current Biology