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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 ...

ELLENSBURG, Wash. - A chimpanzee who could talk to people using American Sign Language has died at Central Washington University in Ellensburg. The university's Chimpanzee and Human Communication ...

SPOKANE, Wash. — Washoe, a female chimpanzee said 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 ...

Back in the 1970s, a chimpanzee named Nim Chimpsky took part in a Columbia University research study called "Project Nim." Project Nim was led by Herbert Terrace, a psychologist at Columbia who was ...