Animals Archives - DOES GOD EXIST? TODAY

April 26, 2024April 23, 2024

The Design of Peregrine Falcons

Human structures often upset the natural balance of birds. One example is the abundance of pigeons in urban areas, which disfigure statues and decorative stone buildings and spread various diseases. One solution to the pigeon problem has been the introduction of peregrine falcons. The design of peregrine falcons has allowed them to adjust to human structures and use their highly designed physical characteristics to defend themselves in both city and rural areas.

The peregrine falcon is not exceptionally large, but it is designed for high-speed flight and uses that ability to kill other birds, even eagles. The peregrine will fly high and dive on an intended prey at over 200 miles per hour. That speed produces many challenges for these birds. The change in pressure would cause the lungs of the peregrine falcon to burst, except for the design of its nostrils. The falcon has bony tubercles on its nostrils that guide airflow away from the nasal passages, reducing the change in air pressure.

Another problem with a high-speed dive is vision. Most of us have had the experience of having our eyes water when facing a strong wind, but the peregrine falcon has nictitating membranes that are essentially a third eyelid that keeps the eyes clear. Also, the design of peregrine falcons shows a dark area below the eye, which reduces glare.

In the city, pigeons comprise a large percentage of the peregrine falcon diet. The birds nest in the windows of skyscrapers, giving people in the offices a view of their lifestyles and the production of offspring. Several years ago, office workers in South Bend, Indiana, complained that peregrine falcons were killing pigeons and bringing their victims back to the nest. People in tall buildings were horrified when the falcons tore up the bodies of pigeons to feed their young. They didn’t realize that peregrine falcons help maintain the balance of birds in urban areas, meeting an important need for city dwellers. In the wild, peregrine falcons eat rodents and other small mammals.

Airplane designers have studied the design of peregrine falcons and copied many of their features. Like many other engineering problems, we can look to what God has created and copy the design to solve our own problems. Neither a jet airplane nor a peregrine falcon is a product of accidental change. Design requires intelligence and purpose, and the peregrine falcon is a classic example of both.

Reference: allaboutbirds.org, nationalgeograph i c.com, and wikip e dia.org

April 24, 2024April 22, 2024

Rapid Evolution of the Florida Snail Kite

The Florida snail kite is a captivating bird found in southern Florida and the Everglades. Recently, researchers have seen a perplexing rapid evolution of the Florida snail kite. This bird, unlike any other, exclusively feeds on apple snails. These snails, with no significant predators, would overpopulate if not for the presence of the Florida snail kite, leading to a unique ecological balance.

There are always predators in the natural world to keep any species from totally wiping out its food supply and becoming extinct. Problems arise when humans upset the balance by eliminating the predators or introducing a species that has no natural enemies. That has happened in many places. For example, in Australia, many years ago, people introduced rabbits and eradicated the dingos that would have controlled the rabbit population. That allowed the rabbits to multiply in massive numbers, resulting in various environmental problems.

In the case of the Florida snail kite, a larger apple snail was introduced, posing a challenge as the bird’s beak was not designed to extract such snails from their shells. Consequently, the apple snail population surged due to the absence of predators, while the Florida snail kite population dwindled. However, in a remarkable turn of events, a mutation in the Florida snail kites led to the development of a larger and longer beak, enabling them to open the shells of the larger snails. This rapid evolution of the Florida snail kite restored the balance between the birds and the snails.

The problem for evolutionists in this situation is that it requires several mutations. A rapid change like this does not fit classical evolutionary theory, which says that genetic changes take a vast number of years to become totally distributed throughout a population. The change in the Florida snail kite population happened within ten years.

Many geneticists and other scientists are baffled. Dr. Robert Fletcher of the University of Florida has been studying the Florida snail kite and hopes to find an explanation for this rapid change. Whatever the explanation, it is a great testimony to the God who created all living things. His design is so complex that it takes humans a long time to understand. The rapid evolution of the Florida snail kite is just one of many cases where classical evolutionary theory doesn’t fit the evidence.

Reference: pbs.org

April 23, 2024April 22, 2024

A Very Tiny Frog

How small can a vertebrate get? The Brazilian flea toad (brachycephalus pulex) is the smallest known amphibian and the smallest known vertebrate. Despite its name, it isn’t a flea or a toad but a frog. This very tiny frog is small enough that two of them could sit side-by-side on your pinkie fingernail. From snout to rump, the males average about 7 millimeters and the females 8 millimeters.

The Brazilian flea toad’s name can be misleading. These frogs were actually discovered and named in 2011, but it wasn’t until a decade later that they were studied in detail. While both toads and frogs are amphibians, there are some key differences. Toads have drier, bumpier skin and are typically found in dry environments, while frogs have smoother, more moist skin and tend to live near water.

Brazilian flea toads have a bright yellow-orange color, which is probably an aposematic signal to potential predators. Aposematism in animals is often a warning that their skin may contain toxins that make them unpleasant or dangerous to eat. A creature this small needs some way to protect itself.

Why would such a very tiny frog exist? They are endemic to a few forested hills in the southern coastal area of Brazil. Researchers have not studied them enough to understand the niche they fill in their environment, and studying such creatures as this very tiny frog is challenging. Luci Kirkpatrick of Bangor University in North Wales said that tiny creatures are “ecosystem engineers” that are “critical in making sure the food web functions properly.”

God created an ecosystem with organisms that allow life to exist in a balanced environment on Earth. The very tiny frog known as the Brazilian flea toad can teach us a lot about the small world that sustains us.

References: earth.com, mymodernmet.com, bbc.com, and onlinelibrary.wiley.com

April 17, 2024April 21, 2024

Nudibranchs in a Dazzling Array of Colors and Shapes

The diversity of life on planet Earth is astounding. One of the life forms that most of us are not aware of is the order nudibranchia. Nudibranchs are marine gastropod mollusks that shed their shells after the larval stage. The name “nudibranch” means “naked gills.” They are found worldwide in around 3,000 species, and they can be as small as a thumbtack or as long as 20 inches. Oceans contain nudibranchs in a dazzling array of colors and shapes.

What makes the nudibranchs important is that they help keep in balance some dangerous lifeforms that humans have a hard time handling. Nudibranchs will eat sponges, corals, anemones, jellyfish, and just about any stinging life forms that live in the ocean. There have been times when a species of jellyfish or stinging coral have threatened human use of an area of the ocean, but the nudibranchs have brought these creatures under control.

From the Arctic to the tropics, we find various species of nudibranchs in a dazzling array of colors and shapes, keeping balance in the ocean. However, you might assume they are just sea slugs of no value unless you know what they are. Climate change can alter the ocean’s ecological balance, but nudibranchs help control overpopulations of destructive agents in reefs and estuaries.

Most of the marine world has not yet been explored, and we have much to learn. Humans have done more to explore space than the floor of the ocean. As better technology allows us to travel into deep ocean trenches, underwater volcanoes, and isolated reefs, we will gain more understanding of what God has designed to allow life to exist in all parts of planet Earth.

Reference: Smithsonian Magazine for April-May 2024, pages 40 -48.

Nudibranch expert Gary Cobb maintains a Facebook group called Nudibran c h Central, where you can see more examples of these dazzling creatures.

April 12, 2024April 10, 2024

Then It Would Be Alive!

Origin of life research has occupied scientists for years. The media often exaggerates claims that science is getting close to creating life. “Creating RNA life in a lab” is a headline in a recent issue of The Week magazine. The story is about the Salk Institute in La Jolla, California, developing a molecule of ribonucleic acid (RNA) “that could generate accurate copies of another type of RNA.” The article went on to say, “This brings the researchers one step closer to their ultimate goal of creating an RNA molecule that can make accurate copies of itself.” The study’s co-author Gerald Joyce said, “Then it would be alive.”

Ribonucleic acid (RNA) is a polymeric molecule essential for most biological functions. It has a structure similar to deoxyribonucleic acid (DNA), which carries the genetic information in every living cell. The scientists have created the macromolecule RNA in the laboratory by combining smaller molecules. To say that if an RNA molecule could reproduce itself, “then it would be alive” is an exaggeration.

As an analogy, let’s suppose I want to make a new car, which I would call a Claytonmobile. I get an engine out of a Ford, a transmission out of a Honda, a chassis out of a Chevy, and an interior out of a Royals Royce. I put these together and announce to the world that I have created a car. In reality, what did I do? I took things already created and assembled them, but I didn’t create anything. Some of you old timers may remember the Tucker automobile, which was very much like what I just described.

This same process is happening in the scientific community attempting to create life. The goal of the group at La Jolla is to form an RNA molecule that can make copies of itself. The researchers say, “Then it would be alive.” That means they are changing the definition of life that most of us learned in biology classes from high school through graduate school. That definition says life is that which can move, breathe, respond to outside stimuli, and reproduce. When researchers can get RNA to reproduce, they will have satisfied one of the parameters, but they certainly will not have created life.

The more we know of the creation, the more we understand the wisdom and power of the Creator. In Proverbs 8:17-23, Wisdom, personified as a woman, says that those who seek her will find her and that her fruit is better than gold or silver. In verse 22, she says, “The Lord possessed me in the beginning of His way before His works of old. I was set up from everlasting, from the beginning before the earth was.” The complexity of RNA and DNA and of life itself is a great apologetic for the existence of God. We need to listen to the words of Wisdom.

Reference: The Week for March 29, 2024, page 21, reporting on a Washington Post story.

April 11, 2024April 9, 2024

Paddlefish Have a Third Eye

North American waters are home to a most interesting fish known as the spoonbill or paddlefish (Polydon spathula). These fish have an enormous bill, which is actually an antenna studded with thousands of sensory cells to detect electrical signals produced by the plankton on which they feed. The 12—to 15-inch long bill gets so much attention that people overlook another oddity: these paddlefish have a third eye.

Paddlefish have an opening between the bones of the skull called a foramen. It is located at the base of the bill between the eyes and covered by a thin skin and cartilage layer. The foramen allows light to pass through onto a nerve that goes directly to the paddlefish’s brain. It serves as a third eye, allowing the paddlefish to experience changes in light direction and seasonal changes. The third eye cannot form detailed images, but it influences biological changes in body temperature and hormone production in the fish.

As biologists study various life forms, they find common threads that run through all living things. Researchers have found barely visible vestiges of similar structures in frogs, lizards, and some sharks. Since paddlefish have a third eye, they must have a use for it, but the last detailed study of it was in 1896.

There are many things that science does not yet know about living things, but diverse features allow animals to live in Earth’s wide-ranging environments. Evolutionists assume that all life originated from a single cell in the distant past through an unguided chance process. The paddlefish bill with its sensory cells and third eye is difficult to explain by that process. God used the best plan in creating life, and part of that is the capacity to change as the environment changes. Romans 1:20 tells us that “we can know there is a God through the things He has made.”

Reference: “Third Eye of a Spoonbill” in In-Fisherman magazine for May 2024, pages 8-9.

April 3, 2024April 2, 2024

Unique Pollination System of the Jack-in-the-Pulpit

Most plants must be pollinated to reproduce, but their methods vary enormously, sometimes involving wind, birds, animals, or insects. However, the unique pollination system of the jack-in-the-pulpit (Arisaema triphyllum ) depends on fungus gnats.

The jack-in-the-pulpit’s hood resembles pitcher plants that capture and digest insects. Unlike its carnivorous counterparts, this plant uses insects, particularly fungus gnats, for pollination. It lures and ensnares these gnats by emitting a mushroom-like fragrance they find irresistible. The male flowers, blooming first, attract the gnats, which then become dusted with pollen. They manage to escape through a small hole, perfectly sized for a gnat but too small for larger insects.

The female flowers bloom next, and the gnats carry the pollen to the flower of another jack-in-the-pulpit. This cross-pollination prevents in-breeding for healthier plants. The female flowers don’t have an escape hole, so after the gnats pollinate the flowers, they are trapped and die. But, before the gnats die, they lay their eggs inside the jack-in-the-pulpit. The larvae that hatch from the eggs eat the jack-in-the-pulpit’s blossom as it decays. When the hood of the plant withers, the adult fungus gnats fly away so they can pollinate more jack-in-the-pulpits.

This unique pollination system of the jack-in-the-pulpit assures the continued survival of the plant and the gnats while controlling the gnat population. The complexity of this system shows design rather than random chance. The more we know of the creation, the more we can see the design skill and wisdom of the Creator.

References: ScienceNews and Wikipedia

April 2, 2024April 1, 2024

Hummingbird Navigation System

The flying ability of hummingbirds is an exciting example of design in living things. Hummingbirds can move with remarkable speed, hover, fly in all directions, including backward and upside down, and even do flips. Scientists have exhaustively studied their wing shape, attempting to copy it for possible aircraft design. Not only is the design of their wings and muscles amazing, but recent studies show that scientists don’t fully understand the hummingbird navigation system.

Many animals use “pattern velocity,” which depends on visual cues, to adjust their speed and position while in motion. Researchers tried to confuse the hummingbird navigation system by giving them false visual cues. They projected moving patterns onto the walls of a tunnel the birds were flying through to reach a bird feeder. The birds based their flight commands on the projected patterns when hovering or moving up or down. However, when flying forward, they seemed to have an internal speedometer that did not depend on the visual cues.

If you have watched them fly in a storm, through a tree, or through other obstacles, you have seen the amazing hummingbird navigation in operation. A hummingbird’s complex brain design enables it to switch rapidly from visual clues to its own motor responses. This research on hummingbird navigation can help improve drone flight technology. Scientists have discovered much in the design of living things to enhance human technology. To believe that these apparent designs are merely blind mechanistic chance requires a leap of faith that has little evidential support.

In Job 38-39, God challenges Job with a list of mysteries of creation. That list includes questions about birds, including ostriches, hawks, and eagles (Job 39:13, 26-27). Today, we look at birds all over this planet and find that the hummingbird navigation system challenges our understanding, but we can wonder at its design and learn from it.

Reference: Scientific American, April 2024, page 11.

March 22, 2024March 20, 2024

Studying Fish Sounds

Science News magazine reported that virtually all fish produce sounds that can be received and interpreted by other fish of their species. While researchers have cataloged over 1,000 fish sounds, the largest group of bony fish contains more than 34,000 species. There is much more work to do in studying fish sounds.

Fish generate sounds differently from humans. They can click bony structures together, contract specific muscles to drum a gas-filled swim bladder, vibrate stretched tendons in fins like a guitar, or even expel gas from their rear ends. Audrey Looby of the University of Florida Nature Coast Biological Station in Cedar Key describes fish as having “probably the greatest diversity of sound-producing mechanisms across the tree of life.”

Fish hear through tiny stones in their heads that move in response to sound vibrations, triggering signals to the brain. They also have special cells running down their bodies that detect motion and sound waves in the water. The uses of sound among fish are still being sorted out. Fish use sound to attract mates and to tell males where the eggs are and when they need to be fertilized. Fish also indicate distress, warning other fish of danger or scare a predator away. Fish use sound to mark territories and to warn other fish who would invade their territory.

There are many practical reasons for studying fish sounds. Knowing how fish use sounds is essential to understanding how they are affected by human sounds in the water. This knowledge also helps us study fish migrations and determine fish populations.

For those who believe God has built into all life the things needed for survival, it should be no surprise that fish use sounds. It may be that Jesus used fish sounds when He summoned fish for Peter to catch in John 21:5-6. Jesus created all things, including fish. (See John 1:1-2 and 14.) There were several instances in the life of Jesus when fish responded to His bidding, even for the payment of taxes (Matthew 17:27).

When studying fish sounds or any aspect of creation, we see God’s wisdom and design. Romans 1:20 tells us we can know God by the things He has made, but each discovery increases our understanding of how awesome God is.

Reference: “What Does the Fish Say?” in the March 9, 2024 issue of Science News, pages 18 -23

March 21, 2024March 20, 2024

Ant Antibiotic Treatment

Researchers at the University of Wurzburg in Germany have discovered that a species of African ants make antibiotics and treat the infections of their wounded comrades. The species studied is Matabele ants (Megaponera analis)in sub-Saharan Africa. Their diet consists of termites. The ants raid termite nests to get their food, but the termite soldiers fight back with their powerful mandibles. Many ants are wounded, and some wounds become infected and require an ant antibiotic treatment.

Healthy ants pick up their wounded comrades and carry them back to the nest to treat their infected wounds. The ants create an antibiotic substance in a gland on the side of their thorax. Researchers found that the wound treatment reduced mortality rate by 90%. Can humans learn from this ant antibiotic treatment?

Proverbs 6:6 says, “Go to the ant, you sluggard! Consider her ways and be wise.” The writer of Proverbs was primarily concerned with food gathering, but God programmed a set of survival instructions into the ant’s DNA. Researchers say that the primary pathogen in the ant’s wounds is a leading cause of infections in humans, so this study may lead to the development of improved antibiotics.

Humans have much to learn about maintaining our existence on Earth, and every form of life has secrets to teach us. Learning what God has built into life is essential to answer major questions of medical science.

Reference: phys.org