Evolution During Human Colonizations

[Persia]

Research published in Science Nov. 3 reveals that the first individuals settling on new land are more successful at passing on their genes than those who did not migrate. According to Dr. Damian Labuda at the University of Montréal and Sainte-Justine Hospital, the study suggests that population expansion creates opportunities for natural selection to act.

http://www.sciencedaily.com/releases/2011/11/111103143237.htm

[Bavarian Raven]

that makes sense. whoever is there the longest tend to know the area (and its resources/seasons) the best.

it only makes sense they would have the best (generally) chance of surviving.