Evolutionary psychologist Katja Liebal literally wrote the book on Primate Communication. A professor of developmental psychology at the Freie Universität Berlin, Liebal's research focuses "on the cognitive and communicative skills that might be uniquely human and those shared with other primate species." According to BBC Earth, Liebal observes chimps in "hopes to compile the world's first chimpanzee dictionary."
I think learning chimpanzee should be an educational requirement beginning in elementary school to prepare our children for when, y'know, they take over.
(via The Kid Should See This)