Studying chimpanzee calls for clues about the origins of human language

ads space Freud, Wilkie and the other chimpanzees peacefully fed and rested in the sun-dappled Tanzanian forest. Mzee Hilali stood next to me, writing notes on the chimpanzees’ behavior, as he had been doing for over 30 years as a field assistant for Jane Goodall’s long-term study at Gombe National Park.Suddenly, a strange, high-pitched call sounded from where some other chimpanzees were feeding, about a ads space