StarTalk Live! Evolution with Richard Dawkins (Part 2)
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The Future of the Earth
Will we recognize ourselves in that future? Or will we be so different from evolutionary drivers that we might have either more biological talent or perhaps even less? Usually you get new species when they split, when they speciate, and that's not going to happen with humans. But if we set up colonies on Mars, for example, then it would be not unexpected that they might become a separate species which could no longer interbreed with us.
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