Dr. Jane Goodall, the renowned conservationist and animal welfare advocate who became the world's foremost expert on chimpanzees after spending decades studying them in the wild in Tanzania's Gombe Stream National Park has died. She was 91. According to a statement on Wednesday, Oct. 1, from her eponymous institute, she died of natural causes while on a speaking tour in California. She leaves behind her son, Hugo, and three grandchildren.
