Ecosystems Archives

December 4, 2025November 30, 2025

Horns and Antlers – What Are They Good For?

Ronald Johnson asked us a question we’ve heard from animal rights advocates before. Are horns on animals only useful for fighting, showing God to be war-like, angry, and sadistic? The God of the Bible is a loving, caring, merciful, and patient God. When there is violence, killing, and war, the cause is always human power struggles and selfish motives, not the will of God. So, what other purposes do animal horns serve? Here are four non-violent uses for horns and antlers:

1) Horns act as shovels that help animals access food sources they otherwise could not reach. Vegetation is often either too high or too far underground for many animals to reach. Horns allow animals to break off hard-to-reach vegetation or move logs or rocks to reach food sources.

2) Antlers store nutrients that other animals recycle. Many animals, birds, and insects eat discarded antlers to get the extra nutrients they contain.

3) Horns and antlers are used as communication tools with other animals of their kind. Those of us who spend a lot of time in the woods have seen “deer rubs.” This is when a deer uses its antlers to scrape a mark on a tree, signaling its presence, size, and how long ago it was there to other deer.

4) Horns serve as shields against predators like hawks, eagles, falcons, wolves, bears, lions, hyenas, tigers, cheetahs, dogs, and other carnivores. The animal with horns can protect itself and others nearby. I have seen musk oxen defend their young by forming a ring around them with all the horned animals facing outward. A pack of wolves circled the group but never tried to attack.

Animals certainly have other uses for horns and antlers, but the main point is that in most animals, they are rarely used for fighting. God has provided all living things with what they need to live on our planet, and we can see His wisdom and design in the things He has made (Romans 1:20).

October 29, 2025October 28, 2025

Female Moths Listen to Plants

For years, scientists have known that plants vibrate at ultrasonic frequencies when their internal water pressure changes. Recently, they learned that drought-stressed plants or plants that have been cut produce ultrasonic sounds loud enough to be detected by a moth’s ultrasonic hearing. Dr. Yossi Yovel and a team of researchers at Tel Aviv University took this a step further to see whether female moths listen to plants and avoid laying their eggs on those that are distressed.

The researchers found that female Egyptian cotton leafworm moths avoided laying eggs on tomato plants that made distress-related sounds. Unhealthy plants do not allow the moth larvae to thrive. The sounds plants make when they are distressed or unhealthy are outside of the range of human hearing, but insects, bats, and even some small mammals can hear them.

Learning that female moths listen to plants, Professor Yovel speculates on whether “all sorts of animals will make decisions based on the sounds they hear from plants, such as whether to pollinate or hide inside them, or eat the plant.” Taking this even further, Dr. Lilach Hadany, also of Tel Aviv University, speculates on whether plants can pass information to each other through sounds and act on those sounds. “This is an exciting question,” she told BBC News. Previously, researchers learned that plants can communicate with each other through their roots.

The researchers, however, emphasize that plants are not sentient and that this interaction cannot be considered “communication” in the “conservative definition of the term.” Nonetheless, we can look at our own bodies and recall the statement of David in Psalms 139:14, “I praise you because I am fearfully and wonderfully made; your works are wonderful, I know that full well.” Likewise, we see that other forms of life are “fearfully and wonderfully made” as well. Everywhere we look in the natural world, we see evidence of a wonder-working hand that has gone before.

References: bbc.com and elifesciences.org

October 7, 2025October 7, 2025

Biosphere 2 and Primary Succession

Beginning in 1987, a new glass and metal structure began to rise in the desert near Oracle, Arizona. In 1991, it opened as the world’s largest closed ecological system. It was called “Biosphere 2” because planet Earth is “Biosphere 1.” The idea behind the project was to test whether a closed system could support human life on another planet. This marked the start of a two-year mission in which eight people were isolated inside this artificial biosphere to simulate life on a space colony.

The experiment in Biosphere 2 ran from 1991 to 1993 with only limited success. It was attempted again for six months in 1994. Both attempts encountered technical issues and the strain of human group dynamics. Additionally, during the second try, the company managing the experiment was dissolved, leaving the project in limbo. Initially, Columbia University took control of the facility and used it for scientific research until 2003. When it seemed Biosphere 2 might be demolished for urban development, the University of Arizona (UA) took over in 2007 and gained full ownership in 2011.

Today, about 100,000 tourists visit Biosphere 2 each year while UA continues to conduct experiments there. One of the experimental areas is the Landscape Evolution Observatory (LEO). It consists of three artificial landscapes, each measuring 30 by 11 meters with a 4-meter depth of crushed basalt rock from a volcanic crater in northern Arizona. The scientists aim to observe how these landscapes change “from purely mineral and abiotic substrate to living, breathing landscapes that will ultimately support microbial and vascular plant communities” (UA’s words).

I wonder how the researchers could be sure that the one million pounds of basalt from a volcanic crater could be “abiotic,” meaning free of any life forms. However, if microbes or seeds are present, I believe the landscapes will “evolve.” The key is that for any life to develop, it must already be there. Evolution is change over time, but the development of life requires initial life to exist.

The UA scientists explain that the evolution of cyanobacteria—the first microscopic organisms to use photosynthesis—pumped oxygen into the atmosphere, facilitating the development of aerobic life. This paved the way for multicellular life, an ozone layer to shield life from harmful ultraviolet radiation, and weathering to break down rocks into soil.

Considering the history of Biosphere 2, I doubt it will be around—or that the scientists will be—long enough to observe significant evolution. It takes time for rocks to break down into soil. They describe the “process of primary succession,” where simple microbes expand into organisms of increasing “complexity and biodiversity.” The researchers state that photosynthesizing cyanobacteria will capture nitrogen from the air, preparing the way for mosses to grow. The next step involves “colonization by larger plants with roots,” and the primary succession continues.

Long before Biosphere 2, Genesis 1:11-12 details the process of primary succession: “And God said, Let the earth bring forth grass” (Hebrew deshe, meaning tender grass such as lichen or algae), “the herb yielding seed” (Hebrew eseb, meaning naked seed or gymnosperm), “and the tree yielding fruit” (Hebrew ets, meaning tree, wood, or timber). The process of primary succession then continues. (For more on this, see John N. Clayton’s booklet “God’s Revelation in His Rocks and His Word.”)

As the UA scientists describe in their explanation of LEO, “The Earth system consisting of air, water, soil, plants, and microbes is a complex, interacting system.” And so it is, as God revealed to Moses thousands of years ago. Complex, interacting systems require an intelligent Designer.

References: theconversation.com and biosphere2.org

September 16, 2025September 15, 2025

Natural Environment and Pain Relief

Experience has shown that spending time outdoors in a natural environment can help relieve stress and promote relaxation. A new study indicates that there is also a connection between the natural environment and pain relief. It may be surprising that enjoying the beauty and peacefulness of God’s creation can actually reduce the sensation of pain.

To create a controlled laboratory test, the researchers used images and sounds. For a natural setting, the test subjects were exposed to images of a lake surrounded by trees and hills, accompanied by birdsongs and wave sounds. For an urban setting, the subjects viewed an urban lake surrounded by tall buildings with traffic and construction sounds. The third group saw an office scene with computer and fan sounds. The researchers performed MRI scans on the brains of dozens of test subjects while they were exposed to these fake laboratory environments.

For the test, the subjects were exposed to shocks of increasing intensity while the researchers monitored their MRIs. The test subjects exposed to the urban and indoor environments showed the expected brain activity when sensing pain. However, the areas of the brain that receive pain stimulus (nociception in medical terms) were dulled when viewing the natural environment. You could call it “natural” pain relief. According to Maximilian Steininger, who authored the study, they found that the pain relief was not just a placebo effect. It really worked.

The results of this study could be helpful for healthcare facilities and hospitals. Perhaps that’s why my dentist has a nature scene picture on the ceiling above the patient’s chair. Perhaps he should add some natural sound effects. However, creating a natural scene in the lab (or dentist’s office) cannot compare with the real thing. When feeling pain (or stress), getting outside to enjoy God’s creation might be the best medicine. A real connection exists between the natural environment and pain relief. Enjoying God’s creation also inspires us to worship and thank Him for the beauty we enjoy in the outdoors.

Sources: Discover Magazine September/October 2025, page 20, and nature.com

August 11, 2025August 10, 2025

Non-Native Species and the Natural Balance

People often disturb the delicate balance of the natural world by transporting plants, animals, or insects from one region to another, either accidentally or intentionally. When non-native species have no predators to keep them in check, or they outcompete local species for food or space, the natural balance is disrupted. The consequences are often negative.

The list of known cases of destruction caused by non-native species is extensive. Researchers say that introducing outsiders has led to 60% of local bird, mammal, and reptile extinctions. Over the past decade, Florida has spent an estimated six million dollars to control Burmese pythons. These large snakes were brought into the U.S. and sold as pets. When they grew too big to handle, people released them into the Florida Everglades. Without natural enemies in America, these snakes have been preying on local wildlife, including alligators, domestic dogs, cats, and even cattle.

A single Japanese knotweed plant brought into the U.S. can grow rapidly, has no natural predators here, and can crowd out other species, damaging buildings and drainage systems. This plant has appeared in 43 states, including Alaska. Even viruses and bacteria have been introduced from other parts of the world. COVID-19 is one example, but there are lesser-known cases too. For instance, the West Nile virus came into the U.S. from Uganda.

The number of invasive non-native species is huge. It includes Asian carp, parachuting Joro spiders, kudzu, giant hornets, sea lampreys, zebra mussels, South African red weevils, red swamp crayfish, and starlings, among others.

The U.S. government spends over three billion dollars annually on managing invasive species, and more than $150 billion yearly on agricultural damages. Globally, the bill reaches $423 billion. All of this stems from humans acting as poor stewards of the natural resources God has given us.

Reference: The American Legion Magazine for August 2025, pages 20 -26.

June 23, 2025June 22, 2025

A Partial Solution for Invasive Species

The California Department of Fish and Wildlife (CDFW) has suggested a partial solution for invasive species: eat ‘em. Erin Huggins of the CDFW wrote, “Eating invasive species can help protect native wildlife by reducing their numbers and limiting the damage they cause to ecosystems.”

The nutria is an invasive species causing problems in 18 states, particularly in California. These rodents are native to South America but were initially introduced into the United States for the fur trade. Officials thought they had eradicated them from California in the 1970s, but they began to reappear in 2017. Nutrias cause significant problems for farmers and livestock owners, as they eat vegetation right down to the root. Nutrias are even more omnivorous than goats, so they are more destructive.

This is not the first time an invasive species has become an issue. In the 1970s, Asian Carp were introduced into ponds to control the growth of aquatic plants. Four East Asian species were introduced: silver carp, bighead carp, grass carp, and black carp. Some of these species would jump high out of the water when disturbed, creating a hazard for recreational boaters, and elaborate measures have been taken to keep them out of the Great Lakes.

Fish and wildlife officials are now advancing a partial solution for invasive species — making them a food source for humans. Even high-end restaurants now offer nutria and carp meat on their menu. Selling the public on this will take time. Consider that there was a time when Europeans shunned tomatoes, considering them to be poisonous.

The Bible has a good record of banning meat that would be hazardous for human consumption. A familiar prohibition of the Old Testament was against the eating of pork (Deuteronomy 14:8). The Israelites were also told not to eat anything that had already died or any bird or fish that could have eaten contaminated meat, such as vultures, owls, and falcons.

Strong evidence for the inspiration of the Bible is its accuracy in giving the ancient Israelites health guidelines that were far ahead of their time. We rely on science today to provide us with guidelines for healthy eating. A partial solution for invasive species might be to eat them, but a better solution is for humans to avoid upsetting the natural balance in God’s well-designed world.

Reference: “Rodent for Dinner” in The Guardian, March 6, 2025

May 28, 2025May 27, 2025

Roadrunners Run in the Desert

In the Warner Bros. cartoons, the Road Runner was always outrunning and outsmarting Wile E. Coyote. In real life, roadrunners can run up to 20 miles (32 km) per hour. Although they can fly, when not escaping predators, roadrunners spend most of their time on the ground. There are two species. The greater roadrunner (Geococcyx californianus) lives in the deserts of the southwestern United States and Mexico. The lesser roadrunner (Geococcyx velox) lives in Mexico and Central America.

Roadrunners are members of the cuckoo family, and like other cuckoos, they have four toes, with two facing forward and two facing backward. When they run through the dust of the desert, they leave tracks that resemble the letter “X,” making it difficult to tell which way they are going. The greater roadrunner is almost 2 feet (60 cm) long from head to tail. The lesser roadrunner is smaller. They eat nearly anything they can find in the desert, even scorpions and snakes. Due to their speed in capturing prey, the greater roadrunner can eat poisonous snakes, including rattlesnakes.

In the cartoons, the Road Runner makes a sound like “beep beep.” Real roadrunners sound more like the cooing of a dove. Roadrunners don’t migrate, and they stay in their breeding area year-round. They are monogamous and mate for life, with the male and female taking turns incubating the eggs and caring for the young.

Regardless of what happens to Wyle E. Coyote, he always comes back to try to capture the elusive Road Runner. Desert life is a delicately balanced system. Life in the real desert may not be as funny as in the cartoons, but it’s worth learning about because God’s creations are always fascinating.

May 8, 2025May 7, 2025

The Scorpion and the Mouse

Two small but fierce animals live in the Sonoran Desert of the southwestern United States and northern Mexico. One is the Arizona bark scorpion (Centruroides sculpturatus), and the other is the southern grasshopper mouse (Onychomys torridus). The scorpion and the mouse give medical science an insight into pain relief.

Arizona bark scorpions grow to barely more than three inches (8 cm) long, but their stingers pack a wallop. They are nocturnal foragers, feeding on insects, including beetles and roaches. They can live up to six years and sometimes congregate in packs. Many of them survived intact close to ground zero when the United States conducted atomic blast tests in the desert. Their venom is the most potent of any scorpion in North America, and it can be fatal to small animals, children, the elderly, or the sick.

However, Arizona bark scorpions are up against a small predator with a strong defense. The southern grasshopper mouse eats grasshoppers, centipedes, snakes, and scorpions. These mice are immune to the venom of snakes and scorpions. They also eat highly venomous centipedes, which could kill the mouse. However, this courageous mouse sneaks up and pounces on its prey like a cat.

The southern grasshopper mouse has an excellent defense against the terrible pain from the Arizona bark scorpion’s sting. If the scorpion stings humans or ordinary mice, sodium channel proteins in the skin send a painful message to the brain. However, when the southern grasshopper mouse is stung, channels block the flow of sodium, and the pain is quickly gone. More than that, researchers found that the venom injection also blocked other pain sensations for the mouse.

The scorpion and the mouse can teach a lesson to medical scientists working on pain-relieving drugs. Doctors have been trying to find ways to block human pain channels for years. The southern grasshopper mouse may have the solution if we can learn how the system works and how we can duplicate it. Science has made many medical discoveries by studying God’s design in the natural world.

April 10, 2025April 8, 2025

Changing Climate Nonsense

It is amazing to see that some people in the religious community are making climate change an issue. As a public school teacher, I can attest that this destructive attitude is often a result of ignorance. Is climate change happening? The answer is yes! Is this the first time humans have had to deal with changing climate nonsense? The answer is no! It would help if religious people would read their Bibles and not rely on religious con artists for their belief systems.

In Genesis 41:53-57, we read about Joseph and the drought that led to famine in Egypt and its neighboring countries. This was not due to insects or war but to climate change. Second Samuel 21:1 and Jeremiah 14:1-6 recount droughts that significantly impacted the history of Israel. Those of us who are older will recall the Dust Bowl era in the United States, which drove many farmers to California due to the changing climate affecting the central part of the Country.

The public schools need to educate young people on the history of climate change in America’s past because we are entering a period of intense changing climate. It is a scientific fact that the climate is changing worldwide. Areas of the United States that were once deserts are now receiving rain, which alters the animal and plant life in those regions.

The water levels in Lake Michigan have changed dramatically over the course of my lifetime. I used to take my earth science classes on field trips to Lake Michigan. We had been experiencing climate change in those days, which produced unusual amounts of moisture, and the lake was higher than at any time in recent history. Houses built along the lake when the water was low were being threatened by erosion. One place I took my classes to was Michigan City, Indiana, where I knew property owners were battling the higher water levels. As we stopped to look at the beach, a more expensive house than any of my students lived in suddenly slid into the Lake right in front of us.

The causes of climate change are very complex. The extent to which human activity contributes to climate change is a subject of debate, but it is certainly not the only cause. When today’s children face a changing climate, we hope they will be better prepared to adapt to it than their parents were. We all must be prepared in advance for a changing climate.

September 13, 2024September 12, 2024

Kakarraturls Swimming Through the Sand

Life in the desert has unique problems, requiring special plant and animal designs. Life forms, including worms, trees, grass, and insects, work together in non-desert environments. Who keeps the sand clean and aerated in a desert, allowing desert life forms to survive? Blind moles, known as Kakarraturls, swimming through the sand, spend almost their entire life beneath the dunes of Australia’s northern deserts.

Kakarraturls are very small, about four inches long, and weigh about an ounce. Their flipper-like front feet allow them to “swim” through the sand. Their oxygen requirements are small, so they can breathe the limited amount of air flowing between sand grains. They have silky golden fur to survive the cold temperatures of the desert while handling very hot conditions. Because they live underground, they have few predators. Since they are marsupials, they care for their young in a pouch. However, the pouch opens at the rear so it will not become filled by the kakarraturls swimming through the sand.

Every environment on Earth has a keystone species that allows it to sustain life. The desert is a very challenging environment, but the kakarraturl is designed to survive and maintain the quality of the desert sand. Just as our moles eat grubs and maintain the balance between worms and healthy vegetation above the ground, the kakarraturl also controls ants, beetles, and other insects by eating their larvae and pupae under the sand.

As scientists expand their research into remote areas where little has been mapped, they find unusual forms of life, such as the kakarraturls swimming through the sand. The design of our planet is not an accident. It is the handiwork of an intelligence that put much care into the creation of living things and diverse environments. The Bible tells us we can know there is a God through the things He has made, and the kakarraturl is another example of that.