“You are dust, and to dust you shall return.” This verse from Genesis 3 captures very well the fate of beautifully designed organisms after the entrance of sin into the world. But how long does it take for the organic molecules we are made of to break down after death? In general, the longer the time from death, the larger the amount of decay that should be observed. This is particularly true for soft…
If given the choice where in our Milky Way galaxy you would prefer to live, where would you go? To one of those newly-discovered extra-solar planets the media get enthusiastic about when water has been detected there? Before you answer these questions remember that, beyond the presence of water, many other conditions must be fulfilled before any planet can support the continued existence of life as-we-know-it,…
One person’s cultural background can bias their view about people from other cultures… even before they have ever met. Could people also have a bias about how they think about other creatures? It may even be possible that scientific culture could prejudice the way researchers see creature-environmental relations with the potential to bias whole research programs.
A very common reaction to the thought of “microbes” is a compelling desire to slather up in hand sanitizer! However, it is seldom realized that the greatest majority of microorganisms are at the very least not harmful, and at the most necessary for human life! Many aspects of microbial interaction with our environment allow it to be so perfect for humans. Some of these aspects include oxygen generation,…
The stability of organic (carbon-based) molecules is an interesting and challenging topic as there are many different types of functional groups, molecular configurations, and molecular collisions to consider. Research on the stability of ascorbic acid (Vitamin C) and other vitamins demonstrates which factors to consider when it comes to the preservation of carbon-based molecules. Ascorbic acid…
There is one small molecule that makes our world unique and special. What is it? Water! Sure, other planets and moons in our solar system may have (or had) water and even more than Earth, but it is rare to find liquid water on the surface of a planet.
There is no simple clear definition of what life is. This is appropriate as life is a wonderful, complex, beautiful, enigmatic phenomenon that defies any effort to over-simplify it. Still, most people have no difficulty recognizing living things and differentiating them from non-living things.
The scientific method uses inductive reasoning to generate theories that explain data. Deductive reasoning is used to generate testable hypotheses that must be true if a theory is true. When the hypothesis is tested, it may fit well with the new data generated, thus supporting the theory (but not proving it true). If the hypothesis is inconsistent with data, then the theory is inconsistent with data…
There are still some rules that we have to follow if we are to do any science, including biology. The first is that empirical data is the authoritative test of all ideas in science.
Biology is the scientific study of life. But what is “science?” And what is “life?” Most of us use these words all the time and have a general idea of what we mean by them, however, it is common for scientists themselves to not have a clear understanding of what science is and this is not as surprising as it sounds. Philosophers of science struggle to define their own area of study, with different…
The number of different kinds of living organisms is one measure of biological diversity, or what has become known as “biodiversity.” Our world’s oceans have the highest known biodiversity, second only to the number of species found in the tropical rainforest.
During 1833, Arthur Henry Hallam died suddenly and unexpectedly. This would be one of those sad but unremarkable facts of history were it not for his close friendship with Alfred Lord Tennyson. Tennyson spent the next 17 years struggling with the death of his friend. During this time, Tennyson composed “In Memoriam,” a long poem that wrestles with the shock, sadness and despair he experienced and his…
Biogeography is the study of the distributions of living organisms. Biogeographers seek to discover what historical and ecological factors explain why a species lives in one particular area but not in another area. This article examines how the flood might have influenced the present patterns of distributions of various types of living organisms.
This article describes evidence for what appears to be physical design on Earth, in the universe, and in the basic laws of nature. Some have used the examples of design as arguments for the God of religion as the intelligent designer; others have explained the design naturalistically. Some pros and cons of the arguments will be outlined along with cautions in using the arguments.
There are only three known groups of volant vertebrates. Two are extant: birds and bats. The third group is completely extinct and known only from fossils: pterosaurs. Often referred to colloquially as “pterodactyls”, pterosaurs are a diverse group of reptiles totally foreign to our modern minds, yet in some ways they are incredibly familiar, resembling the dragons of folklore.
Picture a ground squirrel who spots a predator and gives an alarm call. The call alerts other squirrels who run for cover, but the call attracts the predator to the one giving the alarm. This unfortunate squirrel may give its life to protect its neighbors. How could this altruistic behavior, assisting other individuals at the expense of the calling squirrel, result from evolution? This seems contrary…
Many kinds of animals appear designed for predation and violence, in contrast to what one would expect based on the biblical description of Edenic peace. It seems that animal species must have changed in major ways since the creation, but is this idea compatible with biblical teachings? Many people have asked this question, wondering whether changes in species point to evolution rather than creation.…
The West Chester University Professor of Biology, Frank E. Fish, was vacationing along New England's coast frequented by magnificent humpbacked whales. While browsing in a gift shop one day he couldn't help but notice a gifted sculptor’s rendition of one of the splendid creatures and commented to the shop owner that the artist had put bumps on the wrong side of the pectoral fin. The bumps should be…
Among those who reject the Biblical record of God’s action in creating everything, including all living things, the process of chemical evolution from atoms to the first cell is usually explained something like this: elements reacted with each other spontaneously forming simple molecules. These simple molecules continued to react forming larger and more complex molecules such as the nucleotide building…
What is the utility of a fourth or a fifth of a wing stroke? Could any insect or bird get by with a wing that is a fraction of its normal size? Could it serve its purpose working at a reduced capacity? These questions are a challenge for those who accept Darwinian gradualism and adaptation. According to the Darwinian evolution theory, biological traits arise by small genetic variations steadily modifying…
