By Ryan Truscott Male chimpanzees in Côte d’Ivoire’s Taï National Park use distinct “auditory gestures” to attract females.

In this four-part documentary series, Chimp Crazy delves into the world of Tonia Haddix, the self-proclaimed ‘Dolly Parton of Chimps’ whose love of pink is only matched by her love of primates. She ...