DISQUS

buddy · 2 years ago

I checked the calendar. It's not April. What's going on?

Yoder · 2 years ago

I have to say it sounds far fetched. One of the most basic principles of population genetics is that even a very little interbreeding can prevent evolutionary divergence. Natural selection has to be pretty strong to overcome gene flow.

But - the strongest selective agent on the planet right now is arguably Homo sapiens, and as emerging technologies allow us to manipulate our children's genetics to suit fashion and ambition, maybe we'll do to ourselves what we've already done to St. Bernards and maize.