RE: Best description of Christianity
February 13, 2015 at 1:34 pm
(This post was last modified: February 13, 2015 at 1:34 pm by JesusHChrist.)
(February 13, 2015 at 1:25 pm)Huggy74 Wrote: 400 years not enough? keep in mind, "speciation" has been produced in a lab. Either way, you're saying that given enough time a different species of slave would be produced?
400 years is no where near enough time and you are ignoring the lack of genetic isolation. If traits developed making reproduction unlikely or impossible, then yes a new species could have developed.
Speciation has been produced in a lab on organisms that reproduce frequently such as fruit flies and bacteria. Not humans. If you could manage 10,000 generations of humans with directed selection in a lab, why do you think you would not see speciation? The exact same mechanism would apply.
It's not as though human genetics are a special case and different from fruit flies.