Posted: Aug 23, 2018 6:25 pm
Bullshit.
What evolutionary biologists (which is the proper term for the people who spend decades studying the subject) actually postulate here, is that the same processes resulting in changes that don't involve the formation of new taxa, are also involved in changes that do produce new taxa. If changes in certain key MHC and fertillin genes result in a population A developing interfertility failure with other populations B, C and D, when individuals in population A in past generations were previously interfertile with individuals in populations B. C and D, then we have a taxon generating event. Nothing "disingenuous" about this at all, it's documented lavishly in relevant papers.
What evolutionary biologists (which is the proper term for the people who spend decades studying the subject) actually postulate here, is that the same processes resulting in changes that don't involve the formation of new taxa, are also involved in changes that do produce new taxa. If changes in certain key MHC and fertillin genes result in a population A developing interfertility failure with other populations B, C and D, when individuals in population A in past generations were previously interfertile with individuals in populations B. C and D, then we have a taxon generating event. Nothing "disingenuous" about this at all, it's documented lavishly in relevant papers.