Did Ancient Climate Change Affect Human Evolution?

Climate change may be on everyone’s lips since the recent UN report, but don’t let that fool you. The shifts in climate we’re beginning to see are nothing new, as far as Earth — or our ancestors — are concerned.But while all the talk nowadays focuses on how to change the course of the climate’s evolution, a study out today in the Proceedings of the National Academy of Sciences suggests shifts in ancient weather patterns may have affected our own spec