Hoping to assemble the world’s first chimpanzee dictionary, primatologist Dr. Katja Liebal spends hours observing how different groups of chimpanzees communicate with each other. She believes that there is a language within their gestures, facial expressions, and vocalizations, and documents these patterns of communication, from kind moments to power struggles. In this clip from Extraordinary Animals, Dr. Liebal translates for the chimps at Twycross Zoo in Leicestershire.

In the archives, more animal communication: talking with dolphins using echolocation, orangutans use iPads to order lunch, and decoding the language of Prairie Dogs.

See more videos about...