|
The Rise and Fall of the Third Chimpanzee. Evolution and Human Lifespecies, or belong instead to the same species and just constitute different races (also known as subspecies)? As explained in Chapter Two, the distinction is based on interbreeding under normal circumstances: members of the same species may interbreed normally if given the opportunity, while members of different species do not. (But closely related species that would not normally interbreed in the wild, like lions and tigers, may do so if a male of one is caged with a female of the other and given no other choice.) By this criterion, all living human populations belong to the same species, since some interbreeding has occurred whenever humans from different regions have come into contact—even people as dissimilar in appearance as African Bantus and Pygmies ...» | Код для вставки книги в блог HTML
phpBB
текст
|
|