21 SEP 2011 by ideonexus

 The Biological Species Concept (BSC)

And when we think of why we feel that brown-eyed and blue-eyed humans, or Inuit and !Kung, are members of the same species, we realize that it’s because they can mate with each other and produce offspring that contain combinations of their genes. In other words, they belong to the same gene pool. When you ponder cryptic species, and variation within humans, you arrive at the notion that species are distinct not merely because they look different, but because there are barriers between them ...
Folksonomies: biology definitions species
Folksonomies: biology definitions species
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A species is defined by the fact that its members can breed with one another.