This article is a summary of Roy Ratcliffe’s recently released book ‘Life on Earth’ (Past, Present and Future)’. Of all the millions of species of life that have existed on earth over billions of ...

The textbook version of the "Out of Africa" hypothesis holds that the first human species to leave the continent around 1.8 ...

Recent fossil finds could mean that "Lucy" wasn't our direct ancestor, some scientists say. Others strongly disagree.

Human evolution is not a straight line but a complex branching tree shared with other great apes. This overview explains the ...