The hiccups you’ve been cursing since lunch are older than you could ever possibly imagine — a ghost signal from ancestors ...

Human aging is not what natural selection failed to prevent. It is what happens when selection simply has nothing left to act ...

Research suggests that crying is not a sign of weakness, but one of the most sophisticated social technologies in the natural ...

The human body is full of evolutionary compromises. The loss of the tail may be one of the clearest examples of how change ...

Human consciousness once looked like an evolutionary extravagance, a mysterious inner movie with no clear purpose. Now a wave of research is converging on a more grounded answer, suggesting that ...

Having a tail that extends beyond the anal opening is a requirement of membership in the phylum Chordata, where humans and ...