Tag: animal

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Facts About Plant Design

Facts About Plant Design including WatermelonOne of our gardener friends sent us these interesting facts about plant design:

Seeds may be dropped into the ground upside down or sideways, yet the plants always come up to the surface.

One grain of corn will produce a stalk on which there may be two ears, with perhaps 742 grains on each ear.

A light crop of wheat will produce approximately 30 grains on each stalk. A good crop of wheat will produce approximately 60 grains on each stalk. There will always be an even number of grains.

Beans grow up a pole from left to right. Morning glories grow up a pole from right to left. If turned upside down, “twining” plants will uncoil and recircle their support. Guide a twiner in the “wrong” direction, and the plant will rewind itself. The higher the twiner grows, the more tightly it clasps its support.

Dandelions will grow above their surroundings whether the grass is two, ten, or twenty inches, for it must grow up into the sunlight.

An average watermelon will have ten stripes on it. Larger ones may have 12 to 16 stripes, but they always an even number.

Those are just a few facts about plant design. Every form of life in the vegetable and animal kingdom has a predetermined set of characteristics – a master plan perfect in every detail – God’s plan. God has a perfect plan for my life and yours, which supplies all our needs – His Word (2 Peter 1:3). By His grace, we receive strength to rise above all our circumstances (Romans 8:31).
— Bob Schweikard © 2019

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Cryptobenthic Fish and Coral Reefs

Cryptobenthic Fish and Coral ReefsThose of us who have spent many happy hours snorkeling in coral reefs tend to look at the big fish that we see in the reef. Groupers, sharks, rays, and parrotfish attract our attention. We can easily miss what makes the reef ecosystem work so that the larger fish can live there. Scientists are learning about cryptobenthic fish in the coral reefs.

Hanging around the reefs are tiny fish that are less than five centimeters long and easily escape our attention. They are known as cryptobenthic fish, and they exist in various species, some of which are known as blennies and gobies. Large numbers of them live in the rocks and crevices, and many of them are nocturnal.

Science News (June 22, 2019) reported on a recent study by scientists from Simon Fraser University in Canada. The study shows that these small fish provide a base to the food chain and allow the larger fish to survive. They don’t venture far from the corals that are attached to the floor of the reef. The cryptobenthic species include 17 families of fish that scientists have identified so far. Researchers in the past have overlooked most of them. Deron Burkepile, an ecologist at the University of California at Santa Barbara, says: “Their role is extremely important. We have definitely overlooked these little cryptobenthic species.”

As we look for the design features that God has built into every ecosystem on Earth, we find complexity and sophistication, allowing the system to function. New studies of the tiny cryptobenthic fish in coral reefs will tell us a great deal about the complexity of the reefs and what makes them work.
— John N. Clayton © 2019

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Zoopharmacognosy Animal Doctors

Zoopharmacognosy Animal Doctors Zoopharmacognosy is a word you don’t see every day. It’s actually a combination of three Greek words which mean “animal” (zoo), “drug” (pharma), and “knowing” (gnosy). It refers to animals using plants, soils, insects, or drugs to solve specific medical problems. It is animals (not humans) medicating themselves. Mammals, birds, and even insects use zoopharmacognosy to cure medical problems, and sometimes to prevent them. Here are a few examples.

It is fairly common to see a sick dog or cat eating grass to induce vomiting.

Sick chimpanzees swallow bitter leaves of Aspilia, a plant that contains an anti-parasitic chemical. The leaves are covered with bristles and bitter tasting so the chimps roll up the leaves and swallow them whole like we might take a pill.

Others chimps and bonobos with diarrhea will split open the stem of an Aframomum plant and suck the bitter juice. The juice contains chemicals which kill parasites which cause diarrhea.

Spider monkeys in Brazil have been seen eating seed pods from a tree known as monkey ear or elephant ear (Enterolobium cyclocarpum) during mating season. The fruit contains progesterone which promotes female fertility.

Brown bears make a paste from the chewed roots of osha (Ligusticum porteri) mixed with saliva and rub it into their fur to repel insects and soothe the bites. The plant contains coumarins which repel fleas and ticks.

To get rid of lice, many songbirds with put ants on their feathers or even roll in an anthill. The ants secrete formic acid, which kills feather lice.

Ants infected with Beauveria bassiana, a soil fungus, will eat harmful substances that are antifungal.

Many kinds of animals will eat dirt to absorb toxins, to combat parasites, or as an antacid. Sometimes they eat dirt to supplement minerals that are missing in their diet.

Pregnant elephants will chew the leaves of a specific tree in the Boraginaceae family to induce labor. Kenyan women make tea from those leaves to help with childbirth. In many cases, people have learned medicines and tonics from animals.

There are many more examples of zoopharmacognosy in which animals act as their own doctors. How did animals get this knowledge? It seems to be instinctive, not learned. Perhaps this instinct was put within the genetic code of these animals by their Creator.
— Roland Earnst © 2019

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Saguaro Desert Old-Timers

Saguaro Desert Old-TimersThe saguaro (pronounced suh-wah-roh) cactus is found only in the Sonoran Desert areas of southern Arizona, northern Mexico, and a small area of southeast California. We call them saguaro desert old-timers for a good reason. Saguaros grow very slowly as a single stem for perhaps 75 years before developing arms. Plants with five arms may be 200 years old.

Saguaro flowers bloom at night from April to June. They close by noon the next day, never to open again. Saguaro flowers can only be fertilized by cross-pollination so there must be a creature to carry pollen from one plant to another. Because the flowers bloom at night, bats are the pollinators. They drink the nectar and transfer pollen from plant to plant.

A successfully pollinated flower will produce a green, oval-shaped fruit with bright red pulp. Many desert creatures eat the fruit and aid the saguaros by spreading their seeds. Only a small percentage of the seeds will ever germinate, but that’s okay because each flower produces as many as 4000 seeds.

Not only do the saguaros have a symbiotic relationship with the bats which consume their nectar and the many creatures who consume its fruit, but it also provides shelter for many desert animals. Saguaros become apartment houses for birds, lizards, desert rodents, and reptiles, as well as a whole entourage of insects.

Saguaros are remarkably well-designed for life in a dry climate. The outside of the plant has pleats like an accordion. The pleats allow expansion for storing large quantities of water when the rains come. As with other cacti, the saguaro has needles rather than leaves to reduce the loss of moisture by transpiration.

Saguaro desert old-timers are designed in a marvelous way to live in the harsh conditions of the desert while providing food and shelter for various desert creatures. They are another indication of a Master Designer of life.
— Roland Earnst © 2019

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Romantic Get-Away Inside a Sponge

Venus flower basket
The Venus’ flower basket (Euplectella aspergillum) is a deep ocean sponge with fascinating properties and an unusual symbiotic relationship with a pair of crustaceans. We call it a romantic get-away inside a sponge.

The Venus’ flower basket is classified as a glass sponge because its body is made of silica, which is chemically the same as glass. The silica fibers are woven together to make a hollow, cylindrical vase-like structure. The fibers form a fine mesh which is rigid and strong enough to survive deep underwater. The picture shows a Venus’ flower basket more than 8400 feet (2572 meters) under the ocean’s surface.

Glassy fibers thin as a human hair but more flexible and sturdier than human-made optical fibers attach the sponge to the ocean floor. The sponge forms the fibers at ocean temperatures while human-made glass fibers require high-temperature furnaces to melt the glass. Human-made fibers are brittle while the sponge’s fibers are more flexible. Scientists are studying these sponges to find ways to make better fiber-optic cables.

We think it’s amazing that the Venus’ flower basket lights its fibers using bioluminescence to attract prey. Even more interesting to us is the symbiotic relationship these sponges have with some crustaceans called Stenopodidea. The Venus’ flower basket holds captive two of those small shrimp-like creatures, one male and one female, inside the sponge’s hollow mesh tube. The captive creatures clean the flower basket by eating the tiny organisms attracted by the sponge’s light and consume any waste the sponge leaves. The sponge provides the crustaceans with protection from predators.

As the crustaceans spawn, their offspring are small enough to escape from the basket and find their own sponge-home where they grow until they are trapped. Because a pair of crustaceans spend their lives together inside the sponge, Asian cultures sometimes use a dried Venus’ flower basket as a wedding gift to symbolize “till death do us part.”

The Venus’ flower basket and the crustaceans benefit each other by mutual cooperation, which we call symbiosis. One more thing, the bioluminescence comes from bacteria that the sponge collects. This amazing three-way partnership occurs deep under the ocean where humans have only recently explored. We think this romantic get-away inside a sponge is another evidence of Divine design, not chance mutations.
— Roland Earnst © 2019

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Unique Spiders with Amazing Speed

Unique Spiders with Amazing SpeedOne of the evidences for God is the specialized design features built into living organisms. There are indications of design and intelligence that are difficult, if not impossible, to explain by chance. There are about 35,000 named species of spiders, but scientists are still discovering more unique spiders.

Spiders have many features that allow them to provide balance in the natural world by eating insects which would otherwise pose a threat to all life on Earth. Spiders capture their prey in various ways. We usually think of spiders making webs. Most of them do, but not all. Many unique spiders use other tactics to grab insects, while the ones that make webs use a variety of shapes and patterns in a variety of locations. Even the way they use their webs varies.

One family of spiders called ray spiders (Theridiosomatidae) make cone-shaped webs. But even ray spiders don’t all use their cone-shaped webs in the same way. In the Peruvian Amazon, there is a ray spider that weaves a cone and attaches a single strand of silk to its tip. The spider reels in the strand to put tension on the web. Instead of waiting for an insect to fly into the web, this spider takes a more proactive approach. When an insect flies in front of the cone, the spider releases the single strand. With the tension released, the web shoots out with the spider riding the tip of it like a slingshot. The helpless insect gets nabbed in mid-air. For obvious reasons, this spider is called the slingshot spider.

The tip of the cone with the spider attached reaches the target with amazing speed before the insect can escape. Scientists have measured the acceleration of the spider riding the slingshot at 100 times the acceleration of a cheetah, the fastest land animal on the planet. As far as unique spiders, we believe that the slingshot spider holds the title of world’s fastest spider.

This spider creates a very complex and well-designed food-collecting tool. The spider must make the cone in exactly the right shape, and with the right chemical make up of the strands for elasticity. Who taught the slingshot spider this amazing trick and gave it the physiology needed to carry it out? We see God’s design and chemistry in everything from the atom to the universe to every living thing on Earth, including unique spiders.
— John N. Clayton and Roland Earnst

Reference: Science News, April 13, 2019, page 5.

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Half-Slumber Design in Animals

Half-Slumber Design in AnimalsWe have a clock in our brain that is based on circadian rhythms. The clock is connected to Earth’s rotation, and it provides daily periods of rest and recovery called sleep. Animals have it too, and for many animals, sleep is a dangerous time if there are predators around. Scientists have discovered that many animals, especially marine mammals, have a half-slumber system designed to keep them safe and yet allow them to sleep.

The half-slumber system allows half of the brain to sleep while the other half is awake and able to respond to danger or navigational needs. Studies in dolphins have shown that there are different regions of the brain that work together to allow one side of the brain to function while the other side sleeps. The hypothalamus contains ventrolateral preoptic nuclei that exchange messages between the left and the right sides of the brain. They determine which side sleeps and which side remains alert to danger. This also allows movement of the dolphin’s fins and tails to generate body heat in the coolness of the marine environment. It also allows the animal to surface, to breath, and to swim with its companions.

Northern fur seals have a similar system but highly modified. The fur seals come out on land and assume a posture that allows them to put one flipper in the water which they paddle with while keeping the other three flippers in the air to avoid heat loss. Their nostrils are out of the water, allowing breathing and one eye is open and looking for predators. The part of the seal’s brain that provides vision is not connected to the other functions of breathing or movement.

Birds also use the half-slumber design. Mallard ducks have a unique system where the ducks form a group. Ducks on the outside of the group have one eye open, and their brains function differently than ducks at the center of the group. Migrating birds that fly for very long times also use the half-slumber design with one eye and one side of the brain watching where the bird is going while the other side of the brain slumbers. Great frigate birds fly for ten days at a time using this system. Swainson’s thrush gets its sleep by taking micro naps when it is perched.

It seems that every creature using the half-slumber design to get its required sleep uses it differently. The changes are not small and are highly complex involving many organs. Intricate design differences in the brain primarily direct them. Studies of animal sleep are in an early stage, but the complexity of the system is undeniable. The Bible tells us that we can “know there is a God through the things He has made” (Romans 1:18-20). It is a very difficult challenge to understand just how complicated God’s design is. Even in our sleep, we demonstrate God’s plans and engineering.
— John N. Clayton © 2019

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Cat Tongues and Papillae

Cat Tongues and PapillaeAlexis Noel and David Hu have been researching cat tongues as reported in the Proceedings of the National Academy of Sciences (December 2018). Using 3-D scanning with micro-computed tomography, they have discovered some interesting things.

The backward facing barbs (papillae) on cat tongues are not cones as had been previously thought. They are actually hollow structures similar to scoops for dipping ice cream. They have a U-shaped cavity that holds fluids extremely well. This shape enables cats to use the force of surface tension to pull up water as they lap it. It also allows them to wick saliva deep into their fur. When cats lick themselves, saliva is distributed all the way down to the roots of the hairs. Cats don’t have sweat glands except on their paws, so the distribution of saliva removes heat from their skin.

The papillae also allow cats to lick up oils and other contaminants on their fur. This not only keeps the cat clean, but it avoids odors. Applying this discovery may open the door to a whole new line of materials for use in home and industry. Dr. Noel gives one word of warning. Don’t let your cat lick a microfiber blanket, because the cat’s tongue will stick to the blanket!

Cat tongues are not like sandpaper but rather like Velcro. Velcro was discovered by scientists watching other examples in the natural world. Humans have copied the design of materials found in living organisms to create many of the substances we take for granted. We see God’s creative genius everywhere we look. “We can know there is a God through the things He has made” (Romans 1:19-20).
— John N. Clayton © 2019

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Petoskey Stone Dilemma

Petoskey Stone TilesEvery part of the United States has rocks, plants, and animals that are unique to that area. Certain plants grow in abundance in various locations. In Arizona the saguaro cactus is abundant. California is home for giant redwood trees. Indiana has tulip trees. Many states have adopted an official flower, tree, bird, fossil, or rock. In Michigan, since 1965 our state rock has been the Petoskey stone.

The name comes from the city of Petoskey which got its name from an Ottawa Indian legend. Thanks to the glaciers that swept down from the north scooping up rocks and depositing them, Petoskey stones are found all over the state. When I took my earth science students to the local gravel pit, we would discover Petoskey stones mixed in with the gravel. A local jeweler would show the kids how beautiful jewelry could be made from those stones.

The Petoskey stone is a petrified tropical coral with the scientific name Hexagonaria, meaning six-sided chamber. The picture shows some tiles made from Petoskey stones, and you can see that each polyp has six sides. Mixed in with them are clams, crinoids, trilobites, fish, and cephalopods. Studies of the Petoskey stone show the coral lived on plankton which are microscopic life forms that live in warm oceans. Petoskey, Michigan is NOT a tropical paradise and the Devonian period when these life forms lived lasted a long time, so the Devonian reefs are very thick. The whole state of Michigan is a bowl with these fossils found all around the state. In the middle of the bowl are coal, oil, peat, sulfur and natural gas deposits. The dilemma is how these rock formations got to be the way they are and where they are.

Some religious folks might suggest that this is a deposit produced by the flood of Noah. The problem with that explanation is that this is not a flood deposit and is not a product of violence. Genesis 7:11 tells us that “all the fountains of the great deep were broken up and the windows of heaven were opened.” I would take my students on a field trip to the Shedd Aquarium in Chicago to see a reef display. The rocks being formed and making up the reef are identical to the ones we see in the Devonian deposit. The fossils don’t show a violent end, but instead, they show a slow, gentle formation process. Calcite, silica and other minerals have replaced the original material in the cells of the Petoskey stone animals, giving a dazzling array of colors.

When God created “the heaven and the earth” (Genesis 1:1), the Bible simply states that He did it – not how He did it. At the end of verse 1, there were Petoskey stones in Devonian reefs, and oil, gas, coal, and the other resources were being formed. A change was coming that would make the conditions of the Earth more hospitable for human life, and God knew what we would need for an advanced civilization. Having a warm ocean covering the entire state of Michigan was not an environment humans could thrive in, but it was a tool God used to prepare the resources for human life.

There is no dilemma if we take the Bible literally and accept only what it says. Locking the creation account into a denominational theological tradition does violence to the Genesis account and causes young people to question the truth of the Bible. On the other hand, as they admire the beauty of the Petoskey stone jewelry they have made, people can realize that God has done some special and beautiful things to prepare a home for us in this life.
— John N. Clayton © 2019

For more on taking Genesis literally, read “God’s Revelation in His Rocks and His Word” available free on doesgodexist.org.

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Ballooning Spiders

Ballooning SpidersNearly two centuries ago a young biologist on a ship 60 miles from the nearest coastline was amazed by some spiders. The spiders were showing up on his ship when they had not been there before. Since his discovery, other researchers have seen similar mysterious migrations of ballooning spiders across open waters. Scientists have studied this amazing technique on Robinson Crusoe Island in the Pacific Ocean 415 miles off the coast of Chile.

The spiders climb to a high point and secure themselves with silk. The spiders have fine hairs called trichobothria which they use to sense wind direction and electric conditions. When it rains, electrons are carried to the ground making the ground negatively charged and the upper atmosphere positively charged. The spiders sense the field that results from this separation of charge. When conditions are right, the spiders release a silk that is so light that even the slightest breeze will keep it afloat. As the spiders spin off this low-density silk, their spinnerets also acquire a negative charge from the ground. The negative charge of the ground repels the negative charge on the silk. When the electric field and the breeze are strong enough, the spiders release the securing silk and become lifted into the air.

The ballooning spiders can rise up to 2.8 miles high and ride the winds for thousands of miles needing no food or water. When they land, they attach themselves and deposit their eggs. The ones that land on Robinson Crusoe Island are called ghost spiders.

The question of why this system is built into the spider’s DNA, how it knows when to send out different kinds of silk, and how it knows to use its legs for flight control is still being studied. There is no connection to other spiders and no compelling force to make them leave their original habitat.

We suggest that God has built incredible designs into all living things that allow the whole world to be populated and repopulated when climate change or other natural processes cause local extinction. By the way, the young biologist who first noticed the ballooning spiders technique was Charles Darwin.
— John N. Clayton © 2019

Data from National Geographic, May 2019, page 28.