Primate social organization is more flexible than previously assumed. According to a new study, the first primates probably lived in pairs, while only around 15 percent of individuals were solitary.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Heated disagreements about sexuality and gender are front and center in ...

Researchers have shed new light on the features that enable tree-dwelling mammals to move effectively through their environments, providing insights into the evolution of the distinct upright postures ...

Sleep is often treated as a casualty of modern life. Artificial lighting, shift work, endless notifications and late-night ...

A surprising new study suggests the earliest primates didn't originate in tropical forests but in cold, dry parts of North America. Some may have even survived seasonal Arctic conditions by slowing ...

The study of dental microwear allows the analysis of the microscopic marks that foods leave on the surface of tooth enamel during mastication. In ...