Elizabeth Lonsdorf's site

Elizabeth Lonsdorf at National Geographic

Jane Goodall Institute's Gombe Stream Research Center

International Primatological Society

"Chimps Know Dead When They See It" Discover Magazine

"Chimps Filmed Grieving for Dead Friend" BBC

"Chimps Mourn Nine-Year-Old's Death?" National Geographic Video

Center for Advanced Study in the Behavioral Sciences

@casbsstanford on twitter