Introduction -- A brief history of primatology and human evolution -- The catarrhine fossil record -- Primate speciation and extinction -- Anatomical primatology -- Captive studies of non-human ...

Same-sex behavior is widespread in primates and may help strengthen social bonds and improve survival under challenging ...

The human brain is a greedy organ. It gulps energy, demands constant upkeep, and somehow grew far larger (relative to body size) than the brains of any other primate. Scientists have always wondered ...

The observation of homosexual behaviors in animals has long raised questions about their origins and functions. A recent ...

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

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

BUFFALO, N.Y. ­­ ­ ­­— Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining strong teeth and defending against oral disease.

A new study from Northwestern University is reshaping how scientists think about brain evolution. The research suggests that ...

What events led to differences between humans and other primates? What changes throughout evolution underlie such a dramatic shift in how we socialize and process information? Although somewhat ...