Digital or Analog Changes

• Welcome to the BOL Forum on Evolutionary Psychology by John Grohol, 3/19/97
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    • Speciation Not Necessarily Abrupt by Mike Hall, 5/15/98
      
      

Mike,

Nice analysis and thank you!

At some point, there is a "line," perhaps irreversable and beyond which the off spring cannot (different from DO not)mate with parent stock. (Using the worn assumption that reproductive incapacity is the definition of a species separation).

It becomes very difficult to assign systematic differences in reproductive preference to changes in sensory coding and behavior sequences (which are likely a function of one set of alleles) versus reproductive capacity.

The adjoining postings suggest that the older, "capacity" definition of species is of limited use (although still employed sometimes for political/social reasons).

Again, we all appreciate your continued interest!

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