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

In humans, teens do the most dangerous things. In chimpanzees, that honor goes to toddlers. The difference may lie in ...

Chimpanzees show physical risk taking peaks in infancy, not adolescence, highlighting the powerful role of supervision in ...

More than 59 different primate species have been observed participating in some kind of same-sex behaviors, making it ...

Bonobo chimpanzees are unique among primates because they do not kill other bonobos. … They still showed increased alertness ...

Ai, a female chimpanzee famous for her cognitive skills has died at 49, according to the Japanese institute where she lived.

Adolescents are known for risky behavior, with teenagers in the US more likely than younger children to die from injury.

Biologists tend to look at the animal kingdom and try to categorize things in an organized fashion. But nature has a way of ...

Ai, a "genius" chimpanzee who could recognize more than 100 Chinese characters and the English alphabet, has died aged 49, ...

Homosexual behavior in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh ...

AMES, Iowa – Iowa State University Anthropology Professor Jill Pruetz long suspected that man-made changes influenced the aggressive behavior researchers have observed among chimpanzees. However, her ...

Bonobo evolution reveals bonding and group cohesion in response to threats, favoring paths to finding peace instead of ...