Plants Archives - Page 6 of 21 - DOES GOD EXIST? TODAY

September 9, 2022September 7, 2022

Invasive Species and Environmental Problems

It is interesting to hear skeptics blaming God for the existence of invasive plants and animals. There is no question that non-native species thrive in the United States. However, some species brought to this country have no natural predators to keep them in check. As a result, they cause crop damage, human health problems, and environmental damage. There are nearly 6,500 invasive species in America, and they cause more damage every year than all natural disasters combined. The stories of how they got here are interesting. Here are some examples:

NUTRIA – Also known as coypu or “swamp rats,” these South American rodents were brought to America by fur farmers in the 20th century.
BROWN GARDEN SNAIL – These mollusks were brought to California as food by French immigrants in the 1850s.
KUDZU – This Asian vine was brought to the U.S. as an ornamental plant in 1876, and farmers used it to feed livestock and reduce soil erosion. To make kudzu widely available to farmers, government agencies provided 85 million seedlings.
WILD BOAR – These animals were native to Eurasia and brought to the U.S. in the early 1900s for hunting. Early settlers in the 1500s introduced domestic pigs as a food source. Unfortunately, some escaped pigs mated with the boars resulting in the invasive species we have today.
LIONFISH – These beautiful fish with venomous spines are natives of the South Pacific and Indian oceans. Aquarium enthusiasts brought them to the U.S. between 1985 and 1992, but when released, they wipe out native fish populations.
DANDELION – Early European settlers brought these “weeds” to the U.S. for food and medicinal purposes.

These invasive species and others cause billions of dollars in economic damage annually. However, we should understand that not all non-native species are considered invasive. For example, corn and wheat are not native to the United States but were brought here as successful food crops.

In Genesis 9:3, God told Noah, “Everything that moves shall be food for you, just as I have given you green plants.” God has given us a wide variety of food sources designed to thrive in various ecological environments, but we must be good stewards of how we use and spread them.

Problems arise when people purposely or accidentally transport plants or animals to new locations where they become out of control. Without predators to control populations, they can throw an entire environment out of balance. Most of our environmental problems are human-caused, and invasive species of plants and animals are good examples.

Reference: Discover magazine for September/October 2022 (pages 34 – 41)

September 8, 2022September 7, 2022

Structural Color in Plants

When you see a peacock with brilliant green in its feathers, realize that it has no green feathers. Its feathers are actually brown, but God has used a clever optical trick to make them look green to us. We call it structural color. Likewise, many butterflies have bright blue spots on their wings, but there are no blue pigments in a butterfly’s wings.

Some plants produce fruits that look blue to us without having any blue pigment in the fruits. The only plants known to produce blue fruits in this way are Viburnum tinus and Lantana strigocamara. You will not get a blue stain if you crush their berries in your fingers. On the other hand, if you crush a common blueberry, its blue pigments will stain your fingers.

When you see a blue pigment, it is blue because it absorbs all other colors while reflecting blue. Structural color uses microscopic pyramid-like structures that manipulate the light. Since blue light has higher energy than other colors, it escapes the structure. Structural color requires no pigments, and you might call it an optical illusion.

Color is essential in the natural world. For example, animals with color vision use colors to camouflage, attract others, or discern whether something is good to eat. The problem with using pigments to produce color is that the chemistry to get a particular color is quite complex, but structural color does not involve any chemistry.

People have used chemicals to produce the colors we see in our fabrics, but some colors can be costly and time-consuming to produce. God has created a chemical-free method to produce much of the beauty we see in the world around us. Beauty in structural color gives evidence of a wise Creator.

Reference: National Science Foundation Research News

September 7, 2022September 6, 2022

Chemical and Medical Side Effects

We live in a time of incredible advances in chemistry and medicine. However, we face the problem of chemical and medical side effects from modern drugs and food additives. Therefore, a medication designed to address one problem will often create other unexpected issues. I can give personal testimony to that.

I have blood pressure issues that are hereditary and a product of my age. For two years, doctors tried various medications to lower my blood pressure, but nothing worked. Finally, a doctor found a new drug that does work. My hypertension is under control, and I am thankful for that. This new drug, in conjunction with some previous medications, together with my new regime of exercise and eating habits, has greatly reduced my risk for a stroke.

The problem with this new medication is that it has side effects that were unknown when I started taking it. It affects my vision, balance, breathing, and sleep. When I complained to my doctor, who likes to be a comedian, he said, “Well do you want to die of a stroke or the side effects?”

We also have chemical and medical side effects from food additives and drinks. People in Christ’s day used fermented grape juice because the water was unsafe to drink. The “wine” available then had a very low percentage of alcohol, around 4%. Today, distillation processes allow the alcohol percentage to be vastly higher, and alcohol poisoning is a significant issue. Recently in Missouri, 19-year-old Daniel Santulli suffered severe brain damage after being forced to drink alcohol as part of hazing during a pledge reveal party for the Phi Gamma Delta fraternity. When I was a fraternity pledge at Indiana University, my fellow pledges were forced to drink alcohol until they could no longer walk. Then they were then driven to a remote country road and dropped off.

Now the college drug of choice is marijuana. Modern marijuana has levels of THC (the drug responsible for psychoactive effects) 15% higher than in the 1970s. British studies show that these high THC levels increase the probability of addiction. We are now seeing fatal accidents caused by marijuana, as Newsweek reports that car accident rates have risen in states after legalizing marijuana sales. Science has not adequately studied the long-term side effects of marijuana.

In addition to drugs, people use food additives and supplements without scientific studies exploring their long-term side effects. God has given us plants and substances such as alcohol that we can use to alleviate human suffering. However, chemical and medical side effects are likely to increase suffering when we use them as untested recreational drugs or food additives.

References: KOMO Mid-Missouri News, Newsweek, The Week August 12, 2022, page 22, and AP in the South Bend Tribune 6/2/22 page 6A.

August 29, 2022August 28, 2022

Soil Derived from Barren Rock

I have had the privilege of walking along a still hot lava flow in Hawaii and watching it cool and crack, exposing a red hot glowing interior. As a student of geology, I have seen the bedrock that tells of the composition of the early Earth in places throughout North and South America and England. There can be very little doubt that the creation of planet Earth left a ball of sterile, barren rock orbiting the Sun. Having lived for 85 years on this planet, I have had the joy of seeing soil derived from barren rock supporting vast plant and animal life.

The story of how soil is produced is a story of wisdom and design unique to our planet. Therefore, it is essential that we understand the importance of the soil God gave us and how to take care of it in our age of expanding populations.

National Geographic published an excellent article by Ferris Jabr titled “Out of Sight,” containing pictures by Oliver Meckes and Nicole Ottawa. The pictures show the agents God created to convert the barren rock of our planet into soil that can grow a forest. A single gram of forest soil (1/454th of a pound) can contain as many as a billion bacteria, a million fungi, hundreds of thousands of protozoa, and nearly a thousand roundworms. The pictures of those microscopic organisms are incredible.

Soil derived from barren rock began with fundamental processes caused by rain, wind, and ice. Once the elements broke down the rocks to small sizes, the microscopic living organisms went to work. Microbes, fungi, lichen, and tiny plants broke down the sand-size rocks and enriched them with minerals life could use. In Hawaii, you can see the black sand beaches produced in modern times and the places where those agents have processed soil in which plants can live. Over time, the elements in early soils, such as carbon, phosphorus, and potassium, were processed to produce advanced soil structure.

The Genesis creation account does not explain God’s methods of preparing the planet for human life. Proverbs 8:22-36 finds Wisdom narrating the processes of creation. But even Wisdom can’t describe the process of soil derived from barren rocks to people with no microscopes or technical language. Today, we are uniquely privileged to see God’s handiwork and to marvel at the incredible complexity involved in the creation of dirt.

Reference: “Out of Sight” by Ferris Jabr in the September 2022 issue of National Geographic, pages 82 -99, with pictures by Oliver Meckes and Nicole Ottawa.

August 25, 2022August 24, 2022

Wildfire Aftermath and Recovery

If you are like me, you have watched with pain the terrible wildfires in the western United States. We tend to focus on the folks who have lost homes or barely got out with the clothing on their backs. However, the long-term effects of wildfires are not as bad as the human tragedy often caused by human mismanagement. Several research studies funded by the National Science Foundation have dealt with wildfire aftermath and recovery.

One study of charcoal from Wales and Poland tells the story of plants consumed by fire millions of years ago. Botanists say that instead of the grasses, trees, and flowers we see today, previous ancient land plants were under an inch tall. Some waist-high or knee-high plants existed, but much of the landscape was covered with tiny plants. At that time, the big plants were fungi that towered over all other plants. A well-preserved prototaxite fossil fungus shows that they stood 30 feet tall.

Earth’s atmosphere at that time had very little oxygen, unlike the 21% figure we see today. Fires would not occur because of the lack of oxygen. Modern studies show that a fire of any size isn’t likely below 16% atmospheric oxygen. Once the level exceeded 16%, fires occurred, and wildfire aftermath and recovery paved the way for the large plants we know today. Modern plants can generate large amounts of oxygen to sustain animal life.

In today’s wildfire aftermath and recovery, there are always “green islands” where a tree cluster avoids being burned because of the topography or nearness to water. A high percentage of seeds from these patches of unburned trees remain to germinate and grow. The creatures that would ordinarily eat the small trees are no longer there, so the plants survive to rapidly reforest the area. That means areas with “green islands” do not need human tree planting. Most human effort and resources can go to places with no “green islands.”

These studies help us understand God’s methods of preparing Earth for humans and the animals we need. Genesis 1:11-12 gives the same picture that the scientists are finding. It says that the first form of plant life was the grasses – “deshe” in Hebrew means tender grass. The second group of plants is “eseb,” meaning “naked seed,” – gymnosperms. That is followed by the tree bearing fruit containing its seed – angiosperms. The Bible tells us the order of progression from early forms of plants to the ones we depend on today. The Bible does not tell us how God did it or how long it took, but scientific research today gives us that information.

Reference: National Science Foundation “Research News”

August 2, 2022August 8, 2022

Greatest Daily Migration on Earth

One of the amazing facts about life on our planet is the way living things fill every niche of the environment. As science extends our knowledge of Earth’s remote regions, we find massive amounts of life with incredible diversity. We find the largest animal population on the Earth in biomass, the volume of the Earth occupied, and numbers of individuals in water deeper than sunlight can reach. The ocean depths make up 90% of Earth’s living space, and we now understand that living there are more than a million species that science has not named or described. Furthermore, they are part of the greatest daily migration on Earth.

Every day, ten billion tons of animals known as zooplankton move upward from as far as 3,000 feet below the surface. The zooplankton include copepods, salps, krill, and fish larvae. At only 1,000 feet down, the water is 20 degrees Fahrenheit colder than at the surface, and the pressure is 30 times as great. For a tiny fish larva, making a 1000-foot journey in about an hour would be like a human swimmer going 50 miles in that amount of time. These animals begin their ascent at sunset and stay near the surface until sunrise when they descend back to the cold dark below.

The purpose of this greatest daily migration on Earth is to eat and avoid being eaten. These zooplankton animals feed on phytoplankton, the microscopic aquatic plants that live in the top few hundred feet of water. Fish and squid feed on the zooplankton, which find protection at the great ocean depths. The first hint of this massive migration occurred in World War II when ships and submarines used sonar to sweep the ocean for enemy subs. They discovered that the seafloor seemed to be moving up and down, creating a deep “scattering layer” that reflected sonar signals. Now we have research tools to explore this layer, which turns out to be alive.

Science is just now beginning to understand the importance of the greatest daily migration on Earth. This huge mass of animal life, their excrement, and their remains sequester carbon in the very deep waters, making them rich in nutrients. Winds along the shores of continents push the surface water from the continental edges out into the open ocean. Their exit causes water to come up from ocean depths to the surface along the continent’s edges, bringing nutrients with it.

Our understanding of this mass migration is helping us to understand the carbon cycle, climate change, and many ecological issues. This greatest daily migration on Earth is a part of God’s creation. It reminds us of Proverbs 8:28-29, which says that Wisdom was there, “…when He established the clouds above and fixed securely the fountains of the deep, when He gave the sea its boundary so the waters would not overstep His command, and when He marked out the foundations of the earth” (NIV).

Reference: Scientific American, August 2022, pages 50 -67.

August 1, 2022July 31, 2022

The Atlantic Puffin and Life’s Adaptability

Environmentalists express concern that many species will become extinct because of the warming climate. For example, polar bears are having trouble finding food because of the disappearance of the ice islands they use for hunting. A bird species that many are concerned about is the Atlantic puffin. These birds had been hunted to the verge of extinction in the 1800s and are still endangered today.

The main diet of Atlantic puffins consists of hake and herring, which are cold-water fish. However, the change in temperature of the North Atlantic Ocean has caused these fish to no longer inhabit some waters where Atlantic puffins get their food. Because of that, there was concern that Atlantic puffins could become extinct.

The Audubon Society Magazine published an interesting report on a study of the Atlantic puffin’s diet by Will Kennerley. Kennerley discovered that the puffins had shifted the foods they eat and feed their chicks. The study showed that they are now eating 21 different fish species that researchers had never observed them eating before. This nutritional flexibility will help preserve Atlantic puffins, demonstrating that these birds are designed to adapt to a changing environment.

The question of how this principle will apply to other forms of life remains to be seen. A big question is whether this adaptability also applies to animals that eat plants since there are cases where plants are dying out in areas experiencing significant climate changes. However, there is less doom and gloom among people who see examples such as the adaptability of the Atlantic puffin. God’s design for living things makes it possible for life to endure even as the environment changes.

You can read more in the summer 2022 issue of Audubon Society Magazine (page 21) and online at THIS LINK.

July 30, 2022July 27, 2022

Wasps Are Essential for the Ecosystem

Wasps are essential for the ecosystem, but I have to admit that my experiences with wasps have been mostly negative. I am very allergic to their stings. My only positive experience with a wasp was when I was teaching a homeroom made up of kids who were in trouble with the school or the law — many of whom were wearing ankle bracelets. The night before the first day of school, I was stung over my left eye by a wasp, resulting in my eye being swollen shut and my face badly distorted. When I walked into my homeroom, there was dead silence until one gang leader said in a timid voice, “What does the other guy look like?”

Wasps have been called “nature’s pest controllers” by wasp expert Dr. Seirian Sumner. Wasps are carnivores who lay their eggs in the body of other insects, and the larvae consume the host after hatching. Wasps control aphids, white flies, cabbage loopers, and brown marmorated stink bugs, all of which are a problem for agriculture.

In addition to killing these crop problems, wasps are pollinators. Wasps pollinate 960 plant species, and 164 species depend entirely on wasps. For example, figs could not reproduce without wasps, and more than 1,000 tropical birds and mammals rely on figs for food. In addition, over 100 orchid species depend on wasps as pollinators. So, yes, wasps are essential for the ecosystem.

When you realize all the good that wasps do and understand that only 1.5% of wasp species sting humans, you have to recognize that wasps are a tool of God to enable us to have the food we eat and the flowers we love.

Reference: National Wildlife magazine, August/September 2022, pages 12-13.

If you want to learn more, there is a new book by Seirian Sumner titled Endless Forms: The Secret World of Wasps published by Harper Collins.

July 26, 2022July 25, 2022

Flower Crab Spiders and Camouflage

An unlimited number of features in the world around us speak of God’s design and wisdom. Consider flower crab spiders with the scientific name Misumena vatia. They earn the “crab” name because they resemble crabs and can walk forward, backward, and even sideways like crabs. Their two front legs are longer and extend out for grabbing prey, which they immobilize by injecting venom. Misumena vatia spiders don’t build webs to catch prey. Instead, they sit on a flower and capture incoming prey with their legs.

Another unique feature of these flower crab spiders is they can change color. The females, which are much larger than the males, have the options of white, yellow, or pale green. White is the baseline color. If they eat colorful prey, they can temporarily take on the prey’s color. For example, their abdomens will turn pink after a meal of red-eyed fruit flies. More commonly, if they sit on a yellow flower, they can secrete a yellow fluid into their outer body cells to give them a yellow color. Unlike chameleons that can change color in seconds, it takes days for Misumena vatia spiders to change their color.

When these spiders sit on yellow flowers, they are difficult for humans to see. However, they become highly visible to humans when they are white and perched for hunting on pink or red flowers. On the other hand, the arthropods that are both predators and prey for flower crab spiders have vision tuned for ultraviolet and blues. To them, the red in the flowers and the white of the spider appear dark to provide camouflage.

Flower crab spiders fill a unique ecological niche. They provide balance for the many life forms that feed on spiders and for the pollinators and plants. God has given us a diverse and beautiful natural world. Unfortunately, we take all this for granted, but when we look carefully, we see design in living things.

Reference: The Spokane, Washington, Spokesman-Review for July 13, 2022, page A01, and Wikipedia.

June 28, 2022June 27, 2022

Evolution Has Multiple Meanings

Yesterday, I mentioned that I sometimes get people to think by saying that I believe in evolution. For some, the word only brings to mind the concept of “man from monkey.” However, evolution has multiple meanings. We looked at three of them yesterday, and none of the definitions say anything about the existence of God. So here are two more evolution concepts.

#4. MICROEVOLUTIONARY CHANGE. These are changes in a biological population over time, usually in response to environmental factors. We see this in viruses evolving to become resistant to drugs. Humans have created new breeds of dogs and cattle through microevolution. In the Bible, Jacob used microevolution in dealing with Laban’s flocks. (See Genesis 30:31-42.) Microevolution, change within a species, is the basis of modern agriculture.

#5. MACROEVOLUTION. This is a process of change from common descent. The key word is “process” and describes how, over time, it can lead to a new species. In microbiology, a microbe may get its DNA mixed up with the DNA of another microbe and produce a new species. Farmers in California can tell you about insects that evolved with the ability to cause damage to crops. Some plants have changed to the point where they are no longer fertile with the original plant from which they came. Fish have also speciated.

Is macroevolution a tool God uses to produce the massive numbers of new species in the world today? To suggest that macroevolution happens only by chance requires more faith than believing that God built a system allowing new plants and animals to exist on a changing Earth.

So, we see that evolution has multiple meanings. But, no matter what definition we use, it simply describes how God has operated and continues to operate. So, when I say that I believe in evolution, you must know what I mean by that. As we noted yesterday, everyone believes in some form of evolution, but that does not disprove God’s existence.