Darwin saw evolution as a slow and steady process with species gradually transforming into new species over long time. He thought that the fossil record should provide evidence for his theory. However, the needed evidence proved to be elusive.
Several species of longwing butterflies are discovered to be hybrids.
The theory of evolution has pervaded most fields of knowledge. Therefore, it is important to know the fundamentals of this theory in order to understand how this ideology influences interpretations of data from nature and differs from the biblical creation model of the origin of life forms.
Why are we trying to find extraterrestrial intelligence, using our intelligence, while at the same time precluding the possibility that an intelligence was involved in the origin of our world?
The specific genes have been identified that cause a lizard to match the black rocks it lives on.
The abrupt appearance of trilobites in Cambrian strata and their absence in Precambrian sediments is a real feature of the rock record and not due to failure of preservation in Precambrian rocks.
A jumping spider has been discovered to produce a kind of milk to nourish its babies, in a manner similar to what mammals do.
Hybridization among wood warblers suggests “filling the earth” through dispersal, speciation and adaptation to local habitats.
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…
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.
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.
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.
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 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…
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.
Suppose we consider science to be a game. What are the rules of the game, and what difference would this approach make? Published in Origins, n.. 64.
However one defines the scientific method, the role of predictions is of significance. A researcher, from his/her knowledge of a topic, makes a prediction of a phenomenon to be found or verified by future research. Published in Origins, n. 64.
