Different in degree or kind (Introduction)

by David Turell , Wednesday, April 16, 2014, 01:25 (3875 days ago) @ Balance_Maintained

tony: I would like to point out the irony of posting this on the same day as you posted:
> 
> > David: We still have no good definition of "species". > http://www.sciencedaily.com/releases/2014/04/140414092144.htm
> 
> Tony: yet this article:
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> http://www.the-scientist.com/?articles.view/articleNo/38008/title/Dating-the-Origin-of-... 
> Tony: Clearly points to the interbreeding between the lineages. Which would suggest either that A.) They are all sub-species of a single parent species and hence different in degrees, or B) They are all the same species. -You are right about the irony, but, we have to work with some sort of concept of species, even if there is not a clear dividing line: Tigrons and ligers as excamples.