Predators Are Essential for Balance

Predators Are Essential for a Balanced System - Hammerhead Shark
Hammerhead Shark

We sometimes get letters from people who have been traumatized by seeing a television program where a carnivore slaughters an innocent animal. We have been conditioned by Disney-type movies such as Bambi or Nemo, showing cute and cuddly animals. The idea of them being eaten by other animals is not on our radar and certainly not what we want small children to see. But, in the real world, predators are essential.

The reality is that the design built into the living system involves population control and that design is far more humane than what happens without it. Predators are essential because when animals become so numerous they cannot find enough to eat, the result is cruel and painful.

There are countless examples of what happens when predators are removed from an area. Years ago, the deer population was in serious trouble in Indiana’s Brown County State Park. The state finally decided to allow a hunt because the deer were eating all of the park’s vegetation. When scientists studied the deer that hunters culled from the population, some 12-year-old deer weighed less than 50 pounds. Their immune system had been compromised because they were emaciated due to a lack of food. The wolves and other predators that had kept the deer population in balance with the food supply had been removed from the park, and the deer suffered as a result.

Animals are not humans in costumes. They do not have a concept of self, and death is not cruel. Starvation, pain, and disease are rare in populations controlled by predators. To vilify God based on animal predation is an unfortunate choice based on ignorance since predators are essential for a balanced system.

It is interesting that most large predators have their numbers limited by low birth rates and small numbers of offspring. Also, many predators’ numbers are limited because larger predators prey on them. Hammerhead sharks limit dangerous shark populations in the ocean. Seventy-one percent of the hammerhead’s diet consists of other sharks.


Designing a world that balances the environment and the animals it supports is incredibly difficult. Humans often upset the balance in nature, and some cases require replacing a predator they have removed from an ecosystem. Caring for all of God’s creatures is essential for our own health and survival.

— John N. Clayton © 2023

Data on Hammerheads from “Sharkfest” PBS television special 7/25/23.

Glasswing Butterflies – Practically Invisible

Glasswing Butterflies – Practically Invisible
Glasswing Butterflies are Beautifully Transparent

We often overlook how hard it is to maintain the balance between different kinds of life in the natural world. For example, if an animal is too successful at avoiding predators and reproducing, it will eat up all of its available food. If it is not successful enough, it will become extinct because predators will wipe it out. Then the predators will be short of food. The design of life which allows animals and plants to exist in balance with their environment is amazing.

One design factor that protects many animals is camouflage. An excellent example of that is an insect known as glasswing butterflies (Greta oto) which have transparent wings. One scientist said that “transparency is the ultimate form of camouflage” because the insect can blend into any background, but transparency is “really hard to do.” Glasswings live in the rainforests of Central and South America.

Most living things are visible because they reflect light. However, microscopic studies of glasswing butterflies show that the wing material has low absorption, low reflection, and low scattering of light. Microscopic nanopillars on the wing’s surface are designed to minimize light reflection and smooth the refraction index gradient between the wing surface and the air. The result is a practically invisible wing except for the dark brown borders tinted with red or orange.

If you believe that natural selection is the sole cause of this design, why don’t all butterflies have transparent wings? This feature obviously favors the survival of the butterfly. Most butterflies have colorful, eye-catching wing patterns that make them visible while giving us an appreciation for the role of beauty in the creation.

From an evolutionary standpoint, there should be no butterflies left with colorful wings, but glasswing butterflies are the exception, not the rule. God has designed creatures to survive in all kinds of environments.

— John N. Clayton © 2021

Reference: Science News, July 31, 2021, page 32.

God Must be Cruel – Or Not

God Must be Cruel – Or Not- Lions with Prey

Skeptics often argue against the existence of a compassionate God. They say that God must be cruel because there is so much cruelty in nature. Television documentaries give us gory videos of lions ripping apart a beautiful impala or wolves tearing apart a baby moose. There are countless examples of situations in the natural world where a predator violently eats a helpless animal. These images even affect human diets in which some people choose not to eat meat because it means someone killed a defenseless animal.

In the past several years, studies have shown that nature has a design that involves “keystone species.” These are animals essential to a local environment. That means without them the entire ecosystem would collapse. Here are some examples that scientific studies have documented:

Sea otters eat sea urchins. When fur hunters removed otters, the urchins reproduced in massive numbers and eventually ate all the ocean plants, so fish, clams, and squid died. The area became void of life.

Army ants eat leaf cutter ants. When army ants were removed from a jungle area, leaf cutter ants ate all the plants, and the jungle became a desert with bird and animal life gone.

When people have removed wolves from an area, deer reproduced in excessive numbers and ate all plant life within their reach. The result was that when old trees died, the forest ceased to exist and became a barren wasteland. In Yellowstone National Park, the introduction of wolves has resulted in the reduction of deer and elk populations. Then new trees and bushes came back, allowing all animal life to flourish.

When people fished largemouth bass out of a lake, minnows reproduced in massive numbers and ate all the plants and microscopic life. As a result, everything in the lake died, including the minnows.

Scientists refer to the elimination of keystone species as “downgrading.” Those who say God must be cruel are not seeing the whole picture. What humans might interpret as unnecessary cruelty is actually necessary for life to exist. We anthropomorphize living things by attaching human values to animals. The design built into creation allows life of all kinds to exist. Therefore, it is not cruel but a part of a wise God’s design for balance in living things.

— John N. Clayton E 2021

Reference: “Keystone Species” by PBS on July 22, 2021.

Wolf Spiders are One of God’s Dandy Designs

Wolf Spiders are One of God's Dandy DesignsThose of us who live in the United States Midwest are familiar with a very large spider species that we see frequently see in our sheds and outdoor equipment. These spiders have a creamy or golden cast with stripes on their heads and brown, gray, and black markings. Wolf Spiders are One of God’s Dandy Designs.

Wolf spiders have stout bodies covered with sensory hairs. They can run very quickly, and they don’t spin webs. Wolf spiders have eight eyes arranged in three rows. The bottom row has four small eyes, the second row has two large forward-facing eyes, and the top eyes are toward the back and side of the head.

After mating, female wolf spiders place their eggs in a silken sac. They attach the pouch to their bodies and carry them around until they are ready to hatch. When they hatch, the mother assists them by carrying them on her back. She can carry up to 100 spiderlings until they are prepared to function on their own. Sometimes the females will step into a water source and allow the babies to crawl down and get a drink and then crawl back up for safety.

Wolf spiders are agents designed to keep a balance in nature. Their diet consists of ants, grasshoppers, crickets, and other insects that pose a threat to humans and our crops. They can bite a human, but while the bite is uncomfortable, it is never lethal. Wolf spiders are one of God’s Dandy Designs to keep things in balance and prevent our crops from being ruined by insects. Eradicating spiders is not a good idea, and wolf spiders are one of the best friends we have.
— John N. Clayton © 2019

Data from the Herald Bulletin by Sheryl Myers October 29, 2019.