Tag Archives: natural selection

Evolutionary mechanisms part 1: What is evolution?

I am utterly enamored with evolution. To me, it is not only the central concept of biology, but it is the single most interesting topic in all of science. Nothing fascinates me as much as evolution. Unfortunately, when I tell … Continue reading

Posted in Science of Evolution, Uncategorized | Tagged , , , , , | 5 Comments

10 common myths about evolution

Evolution is the single most important concept in all of biology. It is absolutely vital for understanding both the history of life on earth and why our modern organisms have their current traits and behaviors. Nevertheless, it is also one … Continue reading

Posted in Science of Evolution | Tagged , , , , , , | 21 Comments

Reducing irreducible complexity

Irreducible complexity is the cornerstone of the intelligent design movement, and it is a popular argument among young earth creationists as well. In simplest terms, this argument states that some systems are too complex to have evolved via natural selection … Continue reading

Posted in Science of Evolution | Tagged , , , , ,

Evolution doesn’t give organisms what they need

When I am teaching evolution, I often like to ask my students to think about why a particular feature or trait evolved. I might, for example, ask them why flying squirrels evolved a flap of skin between their legs that … Continue reading

Posted in Science of Evolution | Tagged , ,

Evolution is blind

One of the central tenets of evolutionary biology is the concept that evolution is blind. In other words, it has not foresight or goal. This principle is extremely important for understanding how evolution works, but it’s a concept that is … Continue reading

Posted in Science of Evolution | Tagged , , , ,

“If evolution is true where are the missing links?”

This is one of the most common arguments that I hear from creationists. The claim is that if evolution is true, then in the fossil record we should see lots of intermediate species. In other words, we should see transitional … Continue reading

Posted in Science of Evolution | Tagged , , , , , | 4 Comments

Microevolution vs. Macroevolution: The False Dichotomy

As I explained in a previous post, evolution is simply a change in the genetic makeup of a population, and natural selection is simply a mechanism that causes evolution. Everyone agrees that both evolution and natural selection occur. Even the … Continue reading

Posted in Science of Evolution, Uncategorized | Tagged , , , , | 23 Comments