Roland Earnst Archives

September 18, 2025September 18, 2025

Left-Handedness of Proteins and Amino Acids

About 9.2 percent of people are left-handed. In other words, less than 10 percent of humans exhibit left-handedness. However, the proteins in living organisms are 100 percent left-handed. I know proteins don’t have hands, but using the term “handedness” helps to explain how proteins are structured. Proteins are made from amino acids, which fold into left-handed shapes that enable their functions in living beings. These proteins are composed of amino acids, which are also left-handed.

This handedness is more accurately called “chirality.” There are over 500 different amino acids, and they exhibit both left and right chirality. However , only 22 of them are used to make proteins, and their chirality is all left-handed. This creates a mystery. If amino acids existed on early Earth in equal amounts of right- and left-handed forms, and life requires only left chirality, how could life have formed spontaneously? Some thus-far unexplained force would have to select only left-handed amino acids to come together to get life started. Robert F. Service, writing on science. org, called this “an enduring mystery.”

Scientists have proposed several ideas to explain why proteins are left-handed. Some suggest meteorites delivered left-handed amino acids to early Earth. It appears that meteorites are rich in these amino acids, likely due to exposure to polarized light. Another hypothesis is that magnetic fields on early Earth twisted the biomolecules. Robert Service asks, “But even if some external force imparted an initial bias, what propagated it?”

Gerald Joyce, a chemist specializing in the origins of life and president of the Salk Institute for Biological Studies, said, “Perhaps it was just a statistical coin flip that caused an original bias toward building blocks of one-handedness to form. But once that coin flipped, it caused other coins to flip.” Those of us who believe in a Creator are often accused of using a “God-of-the-gaps” explanation for life’s mysteries. To me, this explanation for the left-handedness of proteins sounds like a “coin-flip-of-the-gaps.”

Reference: science.org and Science magazine, Vol 383, Issue 6686

September 17, 2025September 15, 2025

Axolotls, or Mexican Salamanders

People often call them Mexican walking fish, but they are not fish. They are amphibians, specifically salamanders. Axolotls (Ambystoma mexicanum) or Mexican salamanders look like a fish because it never fully leaves its larval stage.

Unlike other salamanders and frogs, axolotls do not go through metamorphosis. When they become adults, they still look like tadpoles. They develop tiny legs but keep their gills instead of growing lungs and moving to land. The external gills and caudal fin, which are usually only found on salamander larvae, give axolotls a fish-like appearance.

Genetic differences lead to four color variations, from black or olive to pale pink or gold. They eat insects, worms, and small fish by sucking food into their mouths like a vacuum cleaner. In the wild, they are critically threatened and close to extinction because their last native habitat, Lake Xochimilco, is being overtaken by urban growth from Mexico City. However, many of these salamanders are bred in captivity as exotic pets and for research.

Axolotls are valuable for studying heart and nerve functions. They have an incredible ability to heal themselves, capable of regenerating severed limbs and some internal organs. Their injuries heal without leaving scars. Axolotls can also accept transplants of organs, eyes, or even brain parts without rejection issues.

Scientists study axolotls to discover new secrets of healing. God has given us many resources in the natural world and the ability to learn from them. As we have said many times, science and faith are friends, not enemies.

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

September 12, 2025September 12, 2025

What Makes Humans So Special?

Many animal rights advocates argue that we should treat animals the same as humans. To do otherwise is what they call “speciesism,” and they consider it perhaps even worse than racism. Why should humans be favored over other species? What makes humans so special?

An article in Scientific American caught my attention. It was written by Kate Wong and titled “Humans Are Not So Special After All.” The article points out that since 1960, when Jane Goodall observed a chimpanzee using grass and twigs as tools to coax termites from their nests, people have discovered that animals can do things previously thought only humans could do. Wong suggests that humans are not unique and that even plants can think and count.

Observations have shown that animals can perform amazing feats, but isn’t it possible that they do these things because they were programmed for survival by their Designer? It seems to me that the examples Wong provides fall short of proving her point. What makes humans so special involves more than the intelligent actions animals perform.

One example Wong uses is that brown capuchin monkeys decline a treat when they see another receiving a better one. She claims this shows a “sense of fairness,” but couldn’t it also indicate a sense of greed? She states that apes, monkeys, and elephants “mourn the loss of bonded individuals.” However, those species are programmed with a group/herd mentality that depends on each other for survival. She also mentions how mice and rats are affected by the pain or suffering of a fellow species member; but rather than compassion, could that not be fear for their own safety?

Wong also mentions an orca that made worldwide headlines for carrying her dead calf for 17 days while swimming 1,000 miles. To me, that appears to be a programmed survival instinct that failed to recognize there was no hope for the calf’s survival. The Eurasian magpie that “recognized itself” in a mirror reminds me of a turkey rooster that “recognized” his reflection in my basement window and kept tapping on the glass to challenge this supposed “competitor” for his territory.

For an example of plant “consciousness,” Wong presents the Venus flytrap and the fact that it “remembers” being touched. After two touches, it closes to trap the insect. After five touches, it secretes enzymes to digest the prey. But this does not demonstrate “thinking.” It is very simple to program a counting subroutine that causes a device to perform an action after two, five, or any number of signals from an outside source. That is programming, not thinking. The same applies to plants that produce chemicals summoning predators for defense when an animal chews on them. Again, it seems to be a survival program built into the plant.

Wong mentions anthropomorphism as “ascribing human thoughts, feelings, and motivations to animals.” While that is something people often do—particularly with dogs—I think Wong herself may be guilty of it.

The bottom line is that none of the examples Wong cites can compare to what makes humans so special. Humans alone are created in the image of God. We have minds unlike the brain functions of any animal. When we see animals do amazing things, we should give credit to the Creator who gave them those survival abilities.

Reference: “Humans Are Not So Special After All” by Kate Wong in Scientific American, September 2025.

September 11, 2025September 11, 2025

AI Stuffed Animals

People often choose to hear what they want to hear rather than what they need to hear. We don’t want to be challenged by tough questions or told what we should or shouldn’t do. Think of that in terms of a child under six years old. They are not different, except that their concepts are just being formed. Now consider the influence of artificial intelligence (AI) on children through AI stuffed animals that tell kids what they want to hear, are always agreeable and charming, and never say “no.”

Small children love stuffed animals and often treat them as if they are real “friends.” What happens when you add AI to the toy? It can now respond to a child’s questions and even their moods. A new trend in stuffed toys is to incorporate interactive AI. This has positive potential. The toy can now tell stories and answer the child’s questions. Children can learn new words faster than by merely watching passive media. It can also help them reduce excess screen time and encourage them to be more active.

Are the effects of AI stuffed animals all positive? The short answer is “no.” If they become the primary companions for young children, it can harm the child’s social awareness and communication with real people. Interaction with other humans, whether children or adults, can teach a child empathy, conflict resolution, and the importance of sharing. The AI toy will always be accommodating to the child’s wishes and moods, but will never say “no.”

Another important factor to consider with AI stuffed animals is privacy. These toys are internet-connected, so they monitor and record children’s conversations to interact with them. They can store, analyze, and possibly misuse conversations of nearby adults as well. Some AI toys work locally without sending conversations to servers, which is worth considering.

The bottom line is that limiting time with AI stuffed animals is just as important as limiting screen time for young children. The problem may be that it’s harder to pry a child’s attention away from their stuffed “friend” than from the television or a game screen. “CyberGuy” Kurt Knutsson correctly says, “Technology will always tempt us with convenience, but children learn best through love, attention, and genuine relationships.” These days, being a good Christian parent is more challenging than ever.

Reference: Kurt Knutsson’s CyberGuy Report on foxnews.com

September 4, 2025September 3, 2025

Why Are There So Many Species?

How many species of living things exist? So far, scientists have identified, classified, and named 1.2 million species, according to worldatlas.com. The same source states there are about 8.7 million species on Earth. Nobody knows for certain, but other estimates—excluding viruses and bacteria—range from 10 million to 100 million species. Why are there so many species of living things?

How quickly are scientists discovering and describing new species? According to worldatlas.com, they identify and assign genus and species names to 15,000 to 18,000 new species each year. At that rate, if we assume 1.2 million have already been named and there are 10 million in total, the task will take over 500 years, but that’s a conservative estimate. Clearly, biologists still have a lot of work ahead.

There are between six and seven thousand known mammal species according to ourworldindata.org, . But the insect world surpasses that number. For example, beetle species alone number between 350,000 and 400,000. Each year, biologists identify most of the “new species” from museum specimens discovered earlier but not carefully studied. Some species in the wild are facing extinction, and some specimens in museums may already be extinct.

We may ask, “Why are there so many species?” God created diverse kinds of living things and endowed them with the ability to adapt to different environments. Each new species fills a niche in the incredible diversity of animal and plant life that makes our existence possible.

We have previously described the various taxonomic classifications used to categorize living things. (You can read that HERE.) “Species” is the lowest and most specific taxonomic category used by scientists to describe life forms. God created humans with an insatiable curiosity and an amazing ability to organize and categorize information. Then, He gave us plenty of life forms to study. We believe that we can learn more about God as we explore His creations. (Romans 1:20)

September 2, 2025September 1, 2025

Cana and the Wedding Feast

We read in John’s gospel that Jesus performed His first miracle at a wedding in Cana of Galilee. Jesus turned six large stone jars of water into wine. But where exactly was Cana? We know it was in Galilee because John mentions it, but the exact location has long been disputed. An archaeologist believes he has found the site of Cana and the wedding feast.

Jesus was present at the wedding with His first disciples, who had been followers of John the Baptist just days before. Mary, the mother of Jesus, was also there, so this wedding was likely for a close friend or family member. The reason for Jesus performing this miracle might have been sympathy for the embarrassment of the wedding host, but it could also have been to help His new disciples develop faith. (See John 2:1-11.)

Natural processes can turn rainwater into grape juice over time, but Jesus had the power to accelerate this without a grapevine. There was no reason for Him to ferment the grape juice to cause intoxication. When the master of the feast tasted it, he remarked, “You have kept the good wine until now.” That suggests the wine at this feast was not intoxicating.

Since the 18th century, the location of Cana and the wedding feast has generally been identified as Kafr Kanna, an Israeli town in Galilee. This is because, following the Crusades, the Franciscans chose it as a convenient place to establish a pilgrimage site, rather than based on historical evidence. Now, archaeologist and historian Tom McCollough suggests that Cana was actually located five miles north of Kafr Kanna, at a site called Khirbet Qana. This was a Jewish village from 323 B.C. to 324 A.D.

Excavations at Khirbet Qana have uncovered a veneration cave complex used by Christian pilgrims until the 12th-century Crusader period. Artifacts and inscriptions on the cave walls indicate this was the original location. McCollough also notes that rabbinic texts and the writings of first-century Jewish historian Flavius Josephus support this site. After Jesus faced resistance in Judea and ministered in Samaria, He returned to Cana, where He healed a nobleman’s son. (See John 4:43-54.)

The significance of identifying the location of Jesus’ first miracle is not for pilgrims to visit and venerate the site. Instead, it shows that the gospels describe real historical locations and events. Jesus is a real person, and Cana was a real place. Historian Tom McCollough believes that his excavations at Khirbet Qana strengthen the historical reliability of the Bible.

Reference: foxnews.com

August 29, 2025August 29, 2025

Prayer Changes Things

As Paul concluded his first epistle to the Thessalonians, he gave them a list of instructions (1 Thessalonians 5:14-22). Among these is the admonition to “Pray without ceasing” (verse 17). That does not mean to be constantly on your knees or even with your eyes closed. The idea is to maintain a constant attitude of prayer. Prayer changes things, starting with the person who prays.

In Acts 12:5, we read about what the early Church did when Peter was imprisoned for preaching the gospel. “Peter was therefore kept in prison, but constant prayer was offered to God for him by the church” (NKJV). They prayed without ceasing for Paul, and God answered their prayer with a miracle. God doesn’t always answer with miracles. Miracles, by their very definition, are extremely rare. However, that does not mean that prayer can’t change things.

Recently (August 27, 2025), a gender-confused person with wicked motives opened fire on children in a Minnesota Catholic school during mass, killing two and injuring 15, plus 2 adults. The deranged shooter apparently harbored major anger toward Christianity and a desire to kill children. This incident also prompted many politicians and media personalities to display their hostility toward prayer. They demonstrated that they can’t believe prayer changes things.

In a press conference, the mayor of Minneapolis criticized people who were calling for prayer in response to the shooting. “Don’t say this is about ‘thoughts and prayers’ right now. These kids were literally praying…they were in a church.” Other Democratic officials and liberal media figures also disparaged faith-based responses to the tragedy. Dana Bash on CNN repeated the mayor’s call to “forget about thoughts and prayers.”

Jen Psaki, the former White House press secretary under President Biden, in a rant on X, stated, “Enough with the thoughts and prayers.” Then, on her MSNBC show, Psaki criticized President Donald Trump and Vice President J.D. Vance for calling for prayer for the families involved. Vance had defended prayer by writing on X, “We pray because our hearts are broken. We pray because we know God listens.”

As I said, prayer changes things. Living in an attitude of prayer will change your life. It will change your attitude toward others. It will make you concerned for their needs and their pains. It will ease your own burdens and lead you to demonstrate God’s love for others. Perhaps it will bring a miracle, and maybe that miracle is a change in your life. Pray without ceasing.

August 28, 2025August 27, 2025

Frequently Quoted “Scriptures” Not Found in the Bible

“God helps those who help themselves.” That was a favorite “scripture” of my father, and he quoted it many times. The problem is that it is merely one of the frequently quoted “scriptures” not found in the Bible. In fact, it contradicts a very important Bible message. We cannot save ourselves. We cannot be good enough to deserve a heavenly reward. Trying to do so only shows a lack of faith in what Jesus has already done for us. See Romans 3:23, 6:23, and Ephesians 2:8.

“Cleanliness is next to Godliness.” Perhaps a parent may quote this “scripture’ to a child who needs to wash, but you won’t find this in the Bible either. In fact, the enemies of Jesus criticized his disciples because they did not ceremoniously wash their hands before eating. Jesus responded very directly about what real cleanliness is. Read it in Matthew 15:1-20.

Another of these frequently quoted “scriptures” not found in the Bible is, “God moves in mysterious ways.” You won’t find those words in the Bible, but in a hymn written by English poet William Cowper in 1773. It is based on Psalms 77:16-19. The first verse of the hymn says,

God moves in a mysterious way,

His wonders to perform.

He plants his footsteps in the sea

And rides upon the storm.

Deep in the dark and hidden mines,

With never-failing skill,

He fashions all his bright designs

And works his sov’reign will.

Yes, God’s ways are mysterious, but He created humans with curiosity and a desire to discover how God does things. Science has unlocked many of the mysteries of creation, but we have only scratched the surface. A leading American computational, physical, and theoretical chemist, Henry F. Shaefer III, once remarked, “The significance and joy in my science comes in the occasional moments of discovering something new and saying to myself, ‘So that’s how God did it!’ My goal is to understand a little corner of God’s
plan.” (U.S. News & World Report, Dec. 23, 1991, cited by Dr. John Oakes).

Frequently quoted “scriptures” not found in the Bible may not be truthful. What we need to realize is that the Bible tells us everything we need to know to be saved. However, it does not tell us everything that can satisfy our curiosity. That is where science fills the gap. The point is that true scientific facts and a correct understanding of the Bible must be in agreement because they both come from the same source—God.

August 21, 2025August 20, 2025

Grand Canyon and Meteor Crater Connection?

For years, the Does God Exist? ministry took groups of people on apologetics training tours of geological features in the southwestern United States. The Grand Canyon and Meteor Crater (also known as Barringer Crater) were among the places visited in northern Arizona. A recent paper in the journal Geology, written by researchers from the University of New Mexico, suggests a Grand Canyon and Meteor Crater connection.

Scientists have long known about driftwood and lake sediments found in Stanton’s Cave in Marble Canyon in the eastern Grand Canyon. Since the mouth of the cave is 150 feet (46 m) above the Colorado River that runs through the canyon, how the driftwood got there was a mystery. Additionally, explorers have discovered ancient beaver tracks in Vasey’s Cave, 121 feet (37 m) above the river—much too high for beavers to access today.

The proposed explanation for these discoveries in the caves is that, in the distant past, a lake existed in the Colorado River. Geologists estimate the lake was about 50 miles (80 km) long and 300 feet (91 m) deep. Something must have created a dam that held back the river, causing the water to rise to the level of the caves. The dam was eventually overtopped and eroded away, possibly less than 1,000 years ago.

What could have caused such a large dam to hold back the Colorado River? It could have been a volcanic flow or a massive rockslide that sent debris into the canyon. But what could cause a rockslide of that magnitude? New dating methods used by two labs in Australia and New Zealand determined the age of the driftwood to be 55,600 years. David Kring, the science coordinator for Meteor Crater, had estimated the age of the crater to be between 53,000 and 63,000 years. Researchers saw a possible Grand Canyon and Meteor Crater connection.

Kring calculated that the impact at Meteor Crater would have caused an earthquake of magnitude 5.4 or greater. In seconds, a shock wave of around 3.5 would have reached the canyon 100 miles away, potentially shaking loose rocks from the steep cliffs of the canyon and damming the river.

So far, the Grand Canyon and Meteor Crater connection is only speculation, but the dates seem to align. As we study the canyon, we can learn a great deal about the area’s geologic history. God gave us curiosity to seek answers about our planet’s past. While we don’t have all the answers about the Grand Canyon’s formation, one thing we know for certain is that the canyon was not formed by the flood of Noah’s time.

References: space.com and news.unm.edu