Capuchin monkeys stick their fingers in their friends' eyes as sign of affection, why have humans developed kissing?" Adriano R. Lameira, a researcher at the U.K.'s University of Warwick ...

Kissing is one of the few natural ... nostrils of a friend—common among capuchin monkeys—are far less likely to be seen as a greeting among humans. Most indigenous hunter-gatherer cultures ...

Yodellers of the world, you never stood a chance: Monkeys will always be better at yodelling than humans because they have a "cheap trick" hidden in their voice box, scientists revealed Thursday.

Humans have practiced some form of yodeling ... The team studied many species, including black and gold howler monkeys, tufted capuchins, black-capped squirrel monkeys, and Peruvian spider monkeys.

Kissing has not always been a sign of affection, according to new research. A.S./peopleimages.com - stock.adobe.com Kiss your assumptions goodbye. You may think you know why humans enjoy smooching ...

When monkeys in Thailand use stones as hammers and ... flakes of rock that look like the stone cutting tools made by early humans. This surprising discovery, described in the journal Science ...

The study suggests that the monkeys did not distinguish between learnable and unlearnable tasks, treating the latter as they had the former—a tendency that the study’s authors say resembles how humans ...

Marmoset monkeys make complex vocalizations ... that give marmosets a vocal advantage over macaques could explain how humans took the next evolutionary step. CHANG: This new paper suggests ...