Primatologist Lisa Parr talks with Yale psychologist June Gruber about her research on how chimpanzees express and recognize emotion. Parr describes what drew her to the topic and walks through the central findings of her work, which use chimpanzee facial expressions and physiological responses to test whether great apes experience and communicate emotional states in ways comparable to humans. The bulk of the interview, from roughly the two-minute mark to nearly sixteen minutes in, covers these core discoveries in some depth. Parr then turns to what she considers the most promising open questions in the field going forward, before closing with practical advice for students who want to pursue emotion research themselves. The format is a structured, chaptered conversation rather than a classroom lecture, but the content is substantive and specific to Parr's actual findings rather than general commentary.