Tag: animal

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Ultraviolet Defense Mechanism

Ultraviolet Defense Mechanism
The human eye is an incredible creation. It not only allows us to sense the visual world around us, but its connection with the brain is amazing. The image that falls on the back of your eye is inverted, and your brain turns it over so that you see everything right side up. Most animals have eyes that do unique things, but not all of them use visible light. Ultraviolet light has a higher frequency than the light we can see. That means it is more energetic than the human eye can detect but less energetic than Xrays. Many animals use ultraviolet light as tools to enable them to survive. Some birds can see in the ultraviolet as do monitor lizards, some foxes, and some snakes. Sometimes ultraviolet vision helps them to find food. Other times prey use it as an ultraviolet defense mechanism.

Among the things those ultraviolet-seeing predators eat are lizards. A lizard called the blue-tongued skink lives on the ground throughout much of the continent of Australia. This lizard would seem to be an easy target for predatory birds and ground-dwelling animals. However, it has an ultraviolet defense. The tongue of the blue-tongued skink is highly efficient at reflecting ultraviolet light. When threatened by a predator, the lizard will open its mouth wide and stick out its tongue. The tongue will give off a blast of reflected ultraviolet light. Experiments show that birds and ground animals that see in the ultraviolet are startled by the sudden burst of ultraviolet radiation and veer away from the lizard.

One of the problematic things in designing any natural environment is building a system where living things can survive over the long term. If there is not a balance between predator and prey, the result is disastrous. Many years ago someone introduced rabbits to Australia. They had no natural enemies, and they reproduced so rapidly that soon the whole continent was overrun with them.

God has designed prey and predators in such a way that, if humans don’t mess it up, the environment and all of the living things in it can survive indefinitely. We are only now beginning to understand how difficult that is, even involving ultraviolet defense mechanisms. We need to allow the Earth to continue to be fruitful.
–John N. Clayton © 2018
Data from Behavioral Ecology and Sociobiology journal and reported on CNET.com

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Jerboa by Design

Jerboa by Design
One of the things that scientists have studied in some detail is food chains. We now understand that for life to proliferate in harsh environments, it sometimes takes a highly specialized animal that is unique to that environment to fill the niche of food that other animals need. The deserts of northwest China, southern Mongolia, northern Africa, and the Arabian peninsula are good examples of harsh environments. The creature at the foundation of the food chain for higher forms of life is the jerboa by design.

This animal is about three inches (7.6 cm) long but has a tail that is over six inches (15 cm) and is flared at its end. The body is mouse-like, but the ears are a third longer than its head. The snout is like a pig’s, and its back legs look like a miniature model of a kangaroo. The back feet are elongated and very powerful and are covered with tufts of stiff hair. The front legs are very short, just barely able to reach its mouth.

The jerboa uses all of its unusual characteristics in a way that allows it to survive in an environment where most animals couldn’t last a day. The tufts on the feet enable it to walk on sand. The large ears are sensitive to very low volume sounds to hear predators approaching. The tail is a prop for standing still, and it gives stability when the animal jumps. It’s like a rudder in the air. When chased by a predator, the jerboa will change directions quickly and often to avoid capture. It can hop at up to 15 miles (24 km) per hour.

The jerboa ‘s diet is almost entirely insects, and it plays a major role in controlling the insect populations. The jerboa is a primary food source for birds of prey. The jerboa’s unique features enable it to survive even though it has many predators.

There are elaborate evolutionary explanations as to how this animal developed, but we see the jerboa by design. So many characteristics are unique to the jerboa that it requires a good imagination to derive a possible evolutionary scenario. God has designed creatures to fill even the harshest environments. Their capacity to adapt to those environments is further testimony to the wisdom built into the creation everywhere we look.
–John N. Clayton © 2018

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Dinosaur Mania in Media

Dinosaur Mania
We seem to have an obsession with dinosaurs, and popular science magazines can’t seem to get enough dinosaur articles. Dinosaur mania struck in May 2018 with Smithsonian Magazine, Scientific American, and National Geographic all featuring dinosaurs as their main articles.

Smithsonian told about new discoveries in China. Scientific American gave a speculative review of how new discoveries affect the classification of dinosaurs. National Geographic provided us with pictures of new fossils of the birds and bird-like dinosaurs. Their article makes the argument that modern birds evolved from dinosaurs after the asteroid collision that ended the dinosaur age. All of these articles are presented with wonderful pictures and charts.

Many people in both the scientific community and in the religious community seem to believe that there is a conflict between what these articles present and what the Bible says. Children receive indoctrination in dinosaurs from “Dinosaur Train” and other shows on children’s TV and websites plus revisions and repeats of “Jurassic Park.” It is important in all of this dinosaur mania that children should not be taught that the Bible is anti-science.

There is much about the history of the Earth that the Bible doesn’t address. There is an economy of language in the Bible, and it doesn’t give us information about how God prepared the resources He knew we would need. The Bible simply says He did it, not how He did it. Passages like Proverbs 8:22 ff and Romans 1:18 ff tell us that wisdom and design were involved, but they give no specifics about when it happened, how long it took, or what the processes were.

No Hebrew word used in the Bible could be applied to dinosaurs. The words used in the creation week referred to animals that Moses knew. We don’t see references to bacteria, viruses, platypuses, penguins, or organisms that use chemosynthesis instead of photosynthesis to produce their food. The Bible does consistently use four classifications of animals. First Corinthians 15:39 is the clearest statement of this: “All flesh is not the same flesh: but there is one kind of flesh of men, another flesh of beasts, another of fishes and another of birds.” In Genesis 1:21-27 the same classifications are used: cattle (behemah), winged fowl (kanaph oph), and great sea creatures (tannin). (For a detailed treatment of these Hebrew words, please see “God’s Revelation in His Rocks and His Word” on our doesgodexist.org website.)

We may be accused of being too literal in our understanding of these words, but we are looking for the agreements between the evidence and what the bible writers express. So were the dinosaurs birds or were they reptiles (part of the “flesh of fish” grouping)? Science has not answered that question yet. The National Geographic article pushes the argument hard that the birds are simply dinosaurs that survived the asteroid collision, but there are many scientists who disagree. Dinosaur mania has taught us much, but there is still much to learn.

Either way, the biblical account is not in error. It simply does not address what seems to have been an effective tool God used to help prepare the Earth for humans. “In the beginning God created the heaven and the earth” is short, brief, and leaves many questions for us to answer ourselves. The methods God used are not important to the overall message of the Bible. If God created everything, and if science is knowledge of what actually happened, they must agree. If they don’t agree, we either have a poor understanding of the scientific evidence or a poor understanding of what the Bible intends to convey. None of us are immune to those two problems, and that certainly includes your author. Let us keep learning and searching for positive answers and stop trying to generate conflict that is destructive to everyone.
–John N. Clayton © 2018

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Job’s Dinosaur

Job's Dinosaur
There is an interesting Bible reference to a fearsome creature in Job 40:15-24. Some creationists consider this to be Job’s dinosaur showing that dinosaurs and humans interacted at the time of Job. This is part of an attempt to suggest that dinosaurs and early humans were contemporaries to disprove the scientific evidence that dinosaurs became extinct long before humans existed on Earth.

The question is, “What kind of creature Job is describing?” Did an animal that existed in the past fit this description? The Hebrew word used for this creature is “behemoth” which literally means a large creature. Many animals that lived in the past and some living today could be called large creatures. We must look at the properties of this animal as described in the passage. We know that it was an herbivore (“feeds on grass like an ox”). Also, we know that “his tail sways like a cedar.” The description also tells us that he was virtually impossible to control.

The AP reported on May 5 about a discovery at White Sands National Monument in New Mexico. Scientists found human footprints inside the footprints of a giant ground sloth. The giant ground sloth was an herbivore that could stand seven or eight feet tall, had tight muscles and front legs tipped with wolverine-like claws. It had a huge tail used mostly for balance when it stood on its hind legs to get at vegetation. It appears that some humans were hunting the sloth and tracking it closely.

There is no denying that ancient humans interacted with these huge creatures. In the Natural History Museum in Chicago, there are displays of the fossils of these creatures, and the picture shows a recreated giant ground sloth at Kartchner Caverns near Benson, Arizona. The finding of human tracks intersecting the tracks of the sloths leaves no doubt about the fact that they were contemporaries. You can’t prove that Job’s dinosaur was actually a ground sloth, but the description fits very well. It is certainly more likely than the claim that the animal was a T-rex or a brontosaurus.
–John N. Clayton © 2018

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IQ and Intelligence

IQ and Intelligence
My first master’s degree was in psychometry, which is the study of tests and measurements. I worked under Dr. David Segel who was a pioneer in that field. One of the interesting things I learned in my studies was that IQ and intelligence are two different things. Many people use the terms interchangeably, but IQ (Intelligence Quotient) is a measure of your ability to perform on a certain kind of test. My mentally challenged son Tim scores very poorly on a Stanford Benet IQ test and very well on a Wechsler Bellevue IQ test. The Stanford Benet test measures an individual’s ability to manipulate and control shapes and spaces. The Wechsler Bellevue is a verbal test. The two tests measure different things, and Tim’s scores were wildly different depending on the type of test.

IQ and intelligence should not be confused. Webster’s dictionary defines intelligence as “the ability to learn and understand,” which has nothing to do with any test. IQ is radically affected by access to education, healthcare, food, living conditions, and the kind of test used. The average IQ in Kenya in 1948 was 72, and today the average is 97. A 25 point gain is not an indication of a change in intelligence, but rather a change in the ability of the people to better answer the questions on the chosen test.

It isn’t possible to compare the intelligence of humans on the basis of race or to compare humans with animals. Some animals do very well on some IQ tests. Koko, the gorilla that we have mentioned in previous issues of our journal, scores a 95 on some IQ tests according to articles in several popular magazines. Crows have high intelligence in solving certain types of problems. A food morsel floating on water in the bottom of a graduate frustrates children under eight years old because the can’t figure out how to get to it. A crow, however, will add pebbles to the graduate until the food floats up to a place where the crow can reach it. Who has the most intelligence?

Human uniqueness is not in our intelligence. It is our spiritual nature that sets us apart and allows us to do things such as art, music, worship, etc. Mentally challenged humans do these things, but intelligent animals do not. Animals may be intelligent and even score high on some IQ tests, but they do not have the capacity to feel guilt, to be sympathetic, or to create. IQ and intelligence aside, humans are unique because of our spiritual nature. We are created in the image of God, and that uniqueness is embodied in what the Bible calls “the soul.”
–John N. Clayton © 2018
Data from Popular Science, Spring 2018.

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Insect Migrations and Earth’s Ecosystems

Insect Migrations and Earth's Ecosystems
It is spring in the Northern Hemisphere, and one of the joys of spring is seeing the amazing migrations of birds as they move north from their wintering grounds. We watch the birds without thinking of the logistics that are involved in millions of birds moving over fast distances. How do you feed these hordes of living things? Their needs are even greater than usual because of the energy required for the long flights. We may not realize the importance of insect migrations that occur at the same time. What collateral benefits does this system create?

Dara Satterfield of the Smithsonian Institution in Washington, D.C. says, “Trillions of insects around the world migrate every year, and we’re just beginning to understand their connections to ecosystems and human life.” This migration not only feeds birds, but they pollinate wild plants and gobble agricultural pests.

We have written in our quarterly journal about the spring migration of monarch butterflies from Mexico to North America. In Europe and Africa, the migration is even more amazing and complex. Each spring the painted lady butterfly travels from Africa across the Sahara desert and the Mediterranean Sea into Europe and then retraces that journey in the fall. Because their life expectancy is so short, it takes six generations of butterflies to accomplish this migration. The butterflies avoid the extreme heat of North Africa in the summer, but they arrive in Africa just in time to feed from the flowers in the fall. Those butterflies are vital to the balance of living things in Europe.

Some of the insect migrations are very important to human food production. The marmalade hoverfly eats aphids during the larvae stage, and as adults they pollinate plants. The volume of insects is seen most clearly in the Pyrenees and Alps. Millions of hoverflies use the winds blowing through the mountain passes to get from one place to another. Scientists have been monitoring this migration because of its economic importance to agriculture in Africa and Europe. There is also a hoverfly migration in the western United States, but it has not been studied.

The size of these insect migrations is hard to comprehend, and we fail to understand the complexity of this system. Studies in the southern United Kingdom estimate that 3.5 trillion insects migrate over that area every year. Without those insect migrations, ecosystems on this planet could not exist.

Those of us who believe in God’s design of the creation see this as one more evidence that the simple statement “In the beginning God created the Heaven and the Earth” is a massive oversimplification. We truly can “know there is a God through the things He has made” (Romans 1:20).
–John N. Clayton © 2018

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Mollusk Designs

Mollusk Designs
Many of the invertebrate creatures known as mollusks build interesting shells. An article titled “How Seashells Take Shape” describing a study of mollusk designs appeared in the April 2018 edition of Scientific American (page 70). The article begins with this paragraph:

“Mollusks are fabulous architects. They build houses that protect their soft bodies from predators and the elements–shells of uncommon strength, durability and beauty. Many of these shells have spectacularly complex shapes–logarithmic spirals bedecked with fractal spines or other ongoing elements, all executed with near-perfect mathematical regularity. Yet mollusks, of course, know nothing of math. How, researchers have wondered, do these humble creatures produce such intricate patterns so precisely?”

The article goes into the mathematics of the shells and how the animals use complex processes that scientists are still studying. It isn’t just the shapes that are an issue here, but also the physical properties of the shell material including elasticity, ductility, tensile strength, and the use of oscillatory systems. Scientists are trying to understand the fractal-like spine pattern in some mollusk designs. Also, the researchers are curious about why 90 percent of mollusk shells are right-handed and only 10 percent are left-handed. Other “exquisite ornamentations” create a mystery for scientists to study.

Romans 1:18-22 tells us that “we can know there is a God through the things He has made.” The complexity of something as basic as a seashell can speak to us about the design God has used in everything He does. It is only with the advent of mathematics and engineering that we can duplicate what we see in nature. Seashells are an intricate example of the design of living creatures.
–John N. Clayton © 2018

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Life Needs Phosphorus

Life Needs Phosphorus
The element phosphorus is used to make matches. Molecular phosphorus has two common forms. There is white phosphorus which is dangerously combustible and is used to make fireworks and weapons. The more stable red phosphorus is used on the side of any box of safety matches. When you strike the match against the red phosphorus, a small amount of it is changed to white phosphorus to ignite the match. But phosphorus has more important uses than starting fires. Life needs phosphorus. The average human body contains about 26.5 ounces (750 grams) of phosphorus. Most of it is in our bones.

Phosphate is a compound of phosphorus and oxygen. It combines with sugars in living tissue to form the backbone of DNA, which is the blueprint for life found in every living cell. Phosphate is also part of a complex organic chemical called adenosine triphosphate (ATP) found in every living organism. ATP releases energy so that cells can function. Life needs phosphorus and could not exist without it in an abundant supply.

Recent research presented at the European Week of Astronomy and Space Science on April 5, 2018, indicates that phosphorus may not be widely available in the Milky Way. The research indicates that it is more random than scientists had previously thought. That means even if one of the recently discovered exoplanets had all of the conditions required to support life, it still might be lifeless without phosphorus.

We have often referred to the many conditions required to make a habitable planet. Here is one more to add to the list. Life needs phosphorus, and apparently phosphorus is less widely distributed than we thought. Phil Cigan, one of the astronomers involved in the study, said, “It’s not a guaranteed thing to have phosphorus abundant everywhere, ripe for the picking. It seems to look like luck plays a bigger role in this.”

Is it just one more chance coincidence that planet Earth has the phosphorus needed for life? We don’t think it is a matter of luck. We think this is another evidence of God’s design for life.
–Roland Earnst © 2018

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Donkeys and Horses

Donkey and Horse
There are many obvious physical similarities between donkeys and horses. In their actions, they are very different.

Horses were first domesticated about 4,000 B.C. A horse can carry a rider into or out of a battle with speed and grace. A horse and its rider form a partnership of mutual trust. With a trusted rider on its back, a horse will charge ahead into the danger of a rugged course or a heated battle. Horses have been used in warfare for thousands of years.

Donkeys were domesticated around 3,000 B.C. While a horse can be fearless, a donkey has a much stronger sense of self-preservation. The unwillingness of donkeys to go into dangerous situations has given them a probably undeserved reputation for being stubborn. Donkeys don’t connect with their human riders in the way that horses do. That lack of mutual connection is a major factor in the reason why warriors have never ridden into battle on donkeys. Riding into confrontation on a donkey would indicate surrender.The use of donkeys in warfare has been limited to carrying supplies and carrying the wounded away from the battle.

So donkeys and horses are physically similar, and studies have not indicated a strong difference in intelligence between these animals. The difference between them seems to be in the way they are programmed in their DNA. The Creator understood that and chose a donkey to ride into Jerusalem as Jesus became the sacrificial fulfillment of the Passover Lamb in Matthew 21:1-5. In the final battle when the power of evil is destroyed forever, Revelation 19:11-16 describes Him riding on a horse. It’s easy to see that the donkey is used by the Suffering Servant and the horse is used by the Conquering King.
–Roland Earnst © 2018

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Bird Migration Data

Bird Migration Data
A fascinating area of study is bird migration. With new technologies, scientists are gathering more bird migration data than ever before.

Arctic terns spend their summers in Alaska and migrate thousands of miles to wintering grounds in South America. Years ago researchers demonstrated that the tern didn’t get the migration information from its parents because terns raised in isolation having no contact with other terns could still make the journey. Terns deprived of visual acuity could still make the journey, so the migration was not by landmarks. The Earth’s magnetic field was not the method because terns equipped with a magnetic scrambler could still make the journey. Similar tests showed it was not by smell or by sound. The researchers concluded that the tern used several navigation tools. If one was lost, the bird would switch to another. We suggested that such a complex system was not a product of chance. It is designed into the tern’s DNA suggesting that God had something to do with the design.

In the March 2018 issue of National Geographic, there is an excellent article titled “Epic Migrations.” Scientists use new tools to collect bird migration data that enables a much more precise understanding of both short and long migrations. Nearly half of all bird species are migratory, so there are a large number of species to study, and scientists are gathering new data continuously.

The long-distance winner of migration is the bar-tailed godwit. One specimen flew 7,150 miles non-stop in eight days from its summering grounds in Alaska to its wintering grounds in New Zealand. In the weeks before migration, godwits build up enormous layers of fat adding more than half their body weight. When they arrive in New Zealand, they have lost all of the fat reserves. Because they do not glide or soar in the journey, their wings are beating all the time. On the way back to Alaska, the birds travel 6,000 miles to China near the Yellow Sea where they spend six weeks. Then they fly 4000 miles back to Alaska. Their departure time for these trips is the same from year to year, influenced only by local weather and winds. They seem to be guided by a precise clock.

Researchers have found an assortment of interesting bird migration data. Studies of frigatebirds in the Pacific show that they sleep while soaring, but only for about 12 seconds at a time for a total of 42 minutes a day. Research shows that half of the bird’s brain is asleep and the other half is awake. Other studies have shown that European starlings use the Sun as a compass and that indigo buntings use stars as a compass. European robins use an internal magnetic compass. When researchers artificially rotated the magnetic compasses by 90 degrees, the birds flew the wrong direction until the Sun came up. Then they reset their magnetic compasses using the Sun for orientation.

Each species of migratory birds seems to have their own built-in devices to make their journeys. The programming of their DNA is incredibly complex and seems to be a designed characteristic built into each species. We can learn a great deal about God by observing the world around us, and truly “we can know there is a God through the things He has made” (Romans 1:20).
–John N. Clayton © 2018