<< I had always heard that the basic definition of a species is that it
cannot interbreed with other species. >>
AT least with some animals and birds, different species can sometimes
interbreed and will in captivity but because of occupying differenct
ecological niches or having different courtship rituals in the wild normally
do not interbreed.
I heard that it may be possible for humans and chimps to interbreed.
This reminds me of the chimp that was taught American Sign Language and then
taught Darwin's theory. The chimp signed back to his keeper, "Am I my
keeper's brother?"
Paul
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