In the contemporary world, different animals and plants live in different places. Why is there the present distribution of animals and plants in the world? For example, how is it that marsupials are restricted to Australia and nearby islands and the Americas, monotremes to Australia and nearby islands, and few placental mammals are native to Australia? Or why are tomatoes and potatoes native to the Americas ONLY? (This is not a question merely of how they could have arrived there, it is also of why ONLY there. And remember, these animals and plants do quite well surviving in other parts of the world).
2007-01-10
16:14:26
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14 answers
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asked by
skeptic
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