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re: New exoplanet found has scientists excited.
Posted on 4/22/17 at 5:01 am to sumtimeitbeslikedat
Posted on 4/22/17 at 5:01 am to sumtimeitbeslikedat
quote:
Evolution, as has been presented in my academic career, is a change of one species becoming another. That, I think, is what I see kids swallowing hook, line, and sinker without looking for actual, proven evidence.
The Galapagos finch example is probably the easiest to follow and understand. It shows how one species of finch developed into several through adaptation. I think the confusion for most people who aren't biologists comes with the possible misconception that species can jump from one family to another.
A cat cannot become a dog, for example, but could, if conditions necessitated, attain dog-like characteristics via convergent evolution. This would, of course, have to happen over a long, long period and the animals would never be the same species. They would simply share some common characteristics as the result of adaptation to similar circumstances.
A good example of convergent evolution is the hummingbird and the hummingbird moth. Two radically different species have adapted to extracting nectar from certain flower types in similar ways.
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