Genetic Similarity Does Not Necessarily Mean Common Inheritance
Different populations of stickleback fish have parallel genetic adaptations to similar local habitats.
Prolonged milk provisioning in a jumping spider
A jumping spider has been discovered to produce a kind of milk to nourish its babies, in a manner similar to what mammals do.
What a Wood Warbler Can Tell us About “Filling the Earth”
Hybridization among wood warblers suggests “filling the earth” through dispersal, speciation and adaptation to local habitats.
Caenorhabditis elegans as a Model to Understand the Role of Epigenetic Heritage in Microevolution
In recent decades, epigenetics has been shown to be a promising field of research, since it describes changes in inheritance patterns that do not involve DNA modifications and are related to interactions between the organism and the environment. Epigenetic marks are chemical changes that occur in chromosomes and result in the silencing or activation of specific genes in different tissues. It has been…
“When Death Was Not Yet": The Testimony of Biblical Creation
The biblical view of death is essentially different from the one proposed by evolution. While the belief in evolution implies that death is inextricably intertwined with life and therefore has to be accepted and eventually managed, the biblical teaching of creation implies that death is an absurdity to be feared and rejected. Published in Dialogue 30/3.
Is There Biological Evidence of Life's Recent Creation?
During one of my frequent visits to the office of my high school headmaster, his individual tutelage yielded a life lesson that I’ve never forgotten. His exact words were, “You think you’re right!” Of course I thought I was right, wouldn’t anyone who thought they were wrong change their mind and then immediately think they are right? Now that I’m an adult biologist, I still think that I’m right. Inevitably…
DNA and Design
Imagine walking down the beach and coming across the words “Romeo loves Juliet” written in the sand. Most of us have experienced something like this and would not be surprised, but most people would be surprised to find the entire text of William Shakespeare’s play Romeo and Juliet written in sand. Why is this? The obvious reason is that sand is the wrong material for large writing projects. Sand grains…
Archaeopteryx: Bird or Reptile? Or Not?
Archaeopteryx is arguably the most famous fossil ever discovered. It has a mixture of bird-like and reptile-like traits, and was first reported only two years after Charles Darwin published his book, The Origin of Species. Since then, another eleven Archaeopteryx specimens have been recovered from the limestones near Solnhofen, Germany.
Why I Care for the Creation
The creation of God was designed to exist in goodness and harmony. To keep this harmony, God entrusts human beings with the duty to take care of the earth. The message of Scripture encourages us to foster ethical behavior towards the creation, centered on caring and stewarding, for at least seven main reasons.
The Bible, The Creation and The Reformation
October 31, 2017 marked 500 years since Martin Luther strode through the crisp autumn air of Wittenberg’s streets, making his way toward the Castle Church. Clutched in his hand were nails, a hammer and a revolutionary document.
Organisms in Their Niche: Passive Modeling Clay or Problem-Solving Entities?
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.
Microbes, Symbiosis, and the Lesson of Interdependence
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,…
Sabbath, Creation and Redemption
The Sabbath, a day set aside to honor the Creator, provides an important opportunity to review briefly two spiritual riches, among many, of the Genesis Creation narratives.
What Is Biology? Part 4 of 4
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.
What Is Biology? Part 3 of 4
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…
What Is Biology? Part 2 of 4
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.
What Is Biology? Part 1 of 4
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…
Conserving Island Earth
The world must have seemed like a big place to Helga Estby, a Norwegian woman who walked across America in the year 1896. Helga immigrated to the United States with her parents in 1871 at the age of 11. On May 5, 1896, at the age of nearly 36, Helga and her 18 year old daughter Clara set out to walk across the United States. They started from Mica Creek, in far eastern Washington state, and walked…
Teeming Creatures of the Sea!
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.
The True Colors of the Ocean
Have you ever snorkeled or scuba dove in a coral reef? If you have, and I asked you to describe the experience in less than five words, I bet your answer would be an explosion of color. Well, maybe you would express it slightly differently, but I am sure that you would include the word color in your description. Coral reefs are one of the most colorful spectacles of nature; electric blues, vivid yellows,…
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