Mind

The utility and reality of species

Gene ExpressionBy Razib KhanMay 24, 2012 2:16 PM

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Of all the taxonomic ranks species is the most clear, distinct, and concrete. More practically, it is the level which most naturally falls out of the patterns of life's tree. Or does it? If the term "species concept" does not ring a bell, please see this entry. If it does, how do you define species in a non-arbitrary manner?

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