Researchers have found that wild orangutans vocalize with a layered complexity previously thought to be unique to human communication, suggesting a much older evolutionary origin.
Sumatran orangutan mothers differ from one another in how they behave with and take care of their infants and how flexibly they adjust their mothering behaviors...
A team of researchers has identified distinct mother-offspring attachment types in wild chimpanzees (Pan troglodytes verus). Drawing parallels with human psychology, the study provides compelling evidence...
Wild chimpanzees alter the meaning of single calls when embedding them into diverse call combinations, mirroring linguistic operations in human language. Human language, however, allows an...
Friendship comes with complex pros and cons -- possibly explaining why some individuals are less sociable, according to a new study of gorillas.
A new study comparing wild and zoo-housed Sumatran orangutans reveals that life in a zoo significantly alters how orangutans interact with their environment. Researchers analyzed over...
Wild chimpanzees have been pictured eating and sharing fruit containing alcohol.
It's a game a lot of us played as children -- and maybe even later in life: unspooling measuring tape to see how far it would...