That's Allopatric speciation, Folks!
May 18, 2014 11:11 AM Subscribe
How quickly does genetic drift lead to speciation in higher life forms? More specifically, how long would it take for two isolated human populations, exposed to similar but not identical selective pressures, to become incapable of producing viable offspring due to genetic drift?
posted by itstheclamsname to Science & Nature (10 answers total) 5 users marked this as a favorite
It appears from my clumsy, amateur research that the size of the initial populations matters, so assume several hundred individuals are in each founding group. I'm curious if there is a rate at which isolated groups of vertebrates have been observed to "drift" or if the variables are simply too complex, and the numbers of observed instances too few, to calculate.
This is for reasons of fiction, not actual human experimentation.