- Nov 14, 2017
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I have no idea what you're trying to say here. How is what you just wrote relevant to biogeography?
Yes, I could say that they tend to. (In fact, I just did say that they tend to.) In lots and lots and lots of cases. That's the fact, and it's a fact that is explained by common descent and that is not explained by special creation. That's why it's evidence for common descent.
A taxonomist decides whether to recognize a subspecies or not. A common criterion for a subspecies is its ability of interbreeding with a different subspecies of the same species and producing fertile offspring. In the wild, subspecies do not interbreed due to their geographic isolation and sexual selection.
biogeography - the branch of biology that deals with the geographical distribution of plants and animals.
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