LifeWorst mass extinctions may have been caused by rising mountains A pair of mass extinctions struck in quick succession just before the dinosaur era, and the birth of a mountain range in South Africa may have been partly to blame News
HumansAncient finger bone may reveal humanity's path out of Africa A single bone found in the Saudi Arabian desert is at least 85,000 years old, and may shed light on the route early humans took out of Africa News