Marmosets can communicate with one another by name and know when they are being addressed, joining a very short list of species exhibiting such behavior, and a first for non-human primates, a new ...

Koko, the western lowland gorilla who learned sign language, died on Thursday. Koko, the western lowland gorilla who learned sign language and became a pop-culture phenomenon, has died at the age of ...

For more than a century, historical documents show researchers have conducted experiments to determine whether apes are capable of communicating not only with members of their own species, but with ...