In the 1960s and 70s, a group of chimpanzees astonished the world by learning sign language. Only two remain and one question ...

New research suggests wild chimpanzees have developed a far more nuanced communication system than previously realized, using several mechanisms that combine their vocalizations to create new meaning.

A bonobo demonstrated the ability to track imaginary objects in controlled tests, challenging the belief that imagination is ...

Humans are not the only species to combine concepts to build more complex meaning, a new study found. Bonobo chimpanzees combine calls in a manner similar to how humans structure words to make phrases ...