Humans are the only primates with true, everted lips — a biologist unpacks the competing theories for why, from feeding and ...

Centuries before modern genetics established the close evolutionary relationship between humans and other primates, Carl ...

The traditional labels Homo, Australopithecus and Paranthropus may no longer match the tangled relationships revealed by the ...

Wild sooty mangabey monkeys can bend the middle of their feet almost as much as chimpanzees flex their ankles while climbing ...

These shifts are usually analyzed regarding their acoustic effects on vowel-like vocalizations, since the evolution of speech was long thought to require an expansion of vocal range driven by vocal ...

A new species of African monkey has been discovered in the rainforests of the Democratic Republic of Congo (DRC), and is one of the rarest discoveries in modern primatology. In a new study published ...

A new study from the University of Kansas complicates the picture of primates living in North America some 55 million years ago during the Eocene, a warm period that allowed mammals to diversify ...

We aren’t the only animals that like to take care of other species. A new study finds that the roots of keeping a pet may ...

Why do humans rely on XY chromosomes to determine sex, while birds use ZW—and many reptiles use neither, letting temperature ...

For many years, observations of monkeys and apes interacting with other species were often viewed as isolated anecdotes. However, recent research has changed this perspective by providing the first ...

This social behavior might reveal the evolutionary roots of traits that underlie pet-keeping in humans, scientists say, from ...