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Tag Archives: natural selection
Evolutionary mechanisms part 7: Gene flow
So far in this series, we have talked about natural selection, sexual selection, genetic drift, and mutations, but that still leaves us with one final and very important evolutionary mechanism: gene flow. This simply refers to the movement of genetic … Continue reading
Posted in Uncategorized
Tagged evolution, gene flow, genetic drift, mutations, natural selection
2 Comments
Debunking the creationist myth that mutations don’t produce new and useful information
Genetic variation is a fundamental requirement for evolution, but many evolutionary mechanisms (such as selection and genetic drift) actually remove variation from populations. Therefore, evolution is entirely reliant on the formation of new genetic information, and without it, evolution would … Continue reading
Posted in Science of Evolution
Tagged Bad arguments, creationism, evolution, mutations, natural selection
12 Comments
Evolutionary mechanisms part 6: Genetic drift
Many people are under the false impression that evolution is always beneficial, but it can actually be quite harmful. This is especially true for evolution via genetic drift. Like natural selection, genetic drift removes variation from a population, but unlike … Continue reading
Dying the way that nature intended: Appeal to nature fallacies
The idea that nature has our best interest in mind is prevalent throughout the anti-science movement. For example, it is common to hear people say, “I’m not going to vaccinate, because I want my children to build immunity naturally, the … Continue reading
Evolutionary mechanisms part 5: Sexual selection
As Charles Darwin sailed on his epic voyage, he noticed something which initially troubled him. In many species, the males had traits which seemed disadvantageous. In birds, for example, the females tended to be dull and camouflaged, whereas the males … Continue reading
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