Humans are often thought to be the only animals capable of language. But it’s difficult to prove a negative like this because we’ll never definitively know the subjective interior monologues of other ...

SPOKANE, Wash. Washoe, a female chimpanzee believed to be the first non-human to acquire human language, has died of natural causes at the research institute where she was kept. Washoe, who first ...

How can one teach language to a chimpanzee who is unable to produce the basic sounds of spoken language (phonemes)? Extensive research has shown they can’t. Two approaches, each using a visual ...