A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in ...

A large comparative study of primate teeth shows that grooves once linked to ancient human tooth-picking can form naturally, while some common modern dental problems appear uniquely human.

A team of evolutionary scientists, dermatologists and wildlife specialists affiliated with several institutions in Japan, Kenya and France has found that human skin wounds take nearly three times as ...

A new primate study links same-sex behaviour to survival, social bonding, and environmental stress, raising intriguing questions about evolution, group stability, and how ancient pressures may still ...

It would halt lifesaving discoveries and place patients at risk ...

The human brain is a fascinating and complex organ that supports numerous sophisticated behaviors and abilities that are observed in no other animal species. For centuries, scientists have been trying ...

Why do humans have larger penises than other primates? New research tests attraction, rivalry, and sexual selection for ...

Scientists have long suspected that the trillions of microbes in our intestines do more than digest lunch, but new work goes much further, showing that human gut bacteria can push mouse brains to ...