(January 1, 2013 at 10:56 pm)Christian Wrote:(December 27, 2012 at 11:28 am)Minimalist Wrote: A series of rapid environmental changes in East Africa roughly 2 million years ago may be responsible for driving human evolution, according to researchers at Penn State and Rutgers University
Proof?
What's wrong Christian? Reading comprehension problems or just to lazy to click the link in the OP?
Save a life. Adopt a greyhound.
![[Image: JUkLw58.gif]](https://i.imgur.com/JUkLw58.gif)