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

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.

Biologists tend to look at the animal kingdom and try to categorize things in an organized fashion. But nature has a way of defying our neat little categories. Take something as common as same-sex ...

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 ...

Behaviour among non-human species could help keep groups together in face of social challenges, says study ...

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 ...

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 ...

The gastrointestinal parasitism in non-human primates represents a complex and dynamic facet of wildlife health with far‐reaching implications for conservation and public health. Researchers have ...