That humans originated in Africa is widely accepted. But it’s not generally recognized how unique features of Africa’s ecology were responsible for the crucial evolutionary transitions from forest-inhabiting fruit-eater to savanna-dwelling hunter. These were founded on Earth movements and aided physically by Africa’s seasonal aridity, bedrock-derived soils and absence of barriers to movements between north and south.
Click here for original story, Large mammals shaped the evolution of humans in Africa, says ecologist
Source: Phys.org