Baby chimps don't cry like human babies do but instead have a "scream" that they use to vocalize their needs to their mother. Chimps spend the first seven to ten years with their moms, learning ...

Back in the 1930s, a human baby - aged just 10 months old - was forced to grow-up alongside a chimpanzee named Gua.

A chilling experiment from the 1930s saw a baby being raised alongside a chimpanzee, with haunting images showing the child in tears after being spun around repeatedly. The study, which was ...

Chilling photos show a tiny little baby being raised alongside a chimp in a warped experiment. One haunting image even shows the tot in floods of tears after being spun about in his chair again ...