HumansShape of human brain has barely changed in past 160,000 years An analysis of fossils suggests changes in the shape of the braincase during human evolution were linked to alterations in the face, rather than changes in the brain itself News
HumansCanine teeth shrank in human ancestors at least 4.5 million years ago The extra-large, dagger-like canine teeth seen in male great apes have been missing from human ancestors for at least 4.5 million years – possibly because females opted for less aggressive partners News