(September 28, 2017 at 5:42 pm)bennyboy Wrote: Yeah, it's metaphors like "gene pool" that I was talking about. I don't think there IS a gene pool, i.e. as a thing which is undergoing a process over time. Clearly, those words are a mathematical shorthand for a theoretical sum of the DNA of organisms who match our ideas of what "human" means, either in a subset or overall.
What do you think there is when there is a population of creatures sharing sufficient genetic similarity such that they can interbreed and exchange genes amongst themselves, but not breed with those from outside the population, thus confining the interbreeding into discrete pools?
