Frans de Waal

CountriesThe Netherlands
CountriesUnited States
DescriptionFrans de Waal and Jennifer Pokorny for discovering that chimpanzees can identify other chimpanzees individually from seeing photographs of their rear ends.
Reference"Faces and Behinds: Chimpanzee Sex Perception" Frans B.M. de Waal and Jennifer J. Pokorny, Advanced Science Letters, vol. 1, 99–103, 2008.