The canonical example of fast human evolution is lactase (the enzyme for digesting lactose and so cow's milk), thought to have spread widely in <10000 years. ht

The canonical example of fast human evolution is lactase (the enzyme for digesting lactose and so cow's milk), thought to have spread widely in <10000 years. http://en.wikipedia.org/wiki/Lactase_persistence#Evolutionary_history http://en.wikipedia.org/wiki/Lactase_persistence#Evolutionar...