Jane Goodall, the conservationist renowned for her groundbreaking chimpanzee field research and globe-spanning environmental advocacy, has died. She was 91. The Jane Goodall Institute said Wednesday Goodall died of natural causes while in California on a U.S. speaking tour. The researcher and activist left a massive impact on the environmental science world. She advocated to protect and restore nature up until her death. | AP

Jane Goodall upended 1960s science when she began studying chimpanzees by living in their midst. Along the way, she taught us much about what it means to be human. She has died at the age of 91 after a lifetime of work to protect animals and their environment. Farewell to a scientific pioneer and a giant of conservation. 🕊️ Share your memories of Jane Goodall in the comments. | Legacy.com