Chilling photographs show inside a disturbing experiment involving a litlte boy and his "sister" chimp who were spun on ...

It is almost 93 years since the experiment was abruptly terminated in the early part of 1932 - and below we take a closer ...

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 ...

Netizens have been having a hard time keeping their laughter off since the time a video of a cute little Chimp cuddling with a man went viral on the internet.

Peggy, the 55-year-old chimpanzee at John Ball Zoo, died after a steep health decline, the zoo said in a Jan. 29 Facebook post. She defied life expectancy odds for most female chi ...