Human Populations
Modern humans (Homo sapiens) are grouped with the mammals (class Mammalia) in the subphylum Vertebrata. Within the mammals, humans are assigned by taxonomists to the primates (order ...
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The world as it is stands to become grossly overcrowded in the near future. The effective use of contraception is one factor that will start to slow the rapid increase of the world's population. Many ...
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Human Populations
