Dr Jane Goodall, a British animal expert, died at 91 in California. She was a world-renowned primatologist, conservationist, and animal rights advocate. She was on a speaking tour when she passed away from natural causes. 

Goodall became famous for her studies of chimpanzees in Africa. Goodall revolutionized the scientific understanding of wild chimpanzees and their behavior. Her work also deepened our knowledge of human evolution. She started her work when she was 26 years old and had no scientific education, but she quickly got the trust of the animals. Goodall worked all her life to protect animals and nature. She often spoke about hope and caring for the Earth. Before her death, she gave interviews and talks in the US. 

Her institute continues her mission of protecting the planet and her message of hope for a sustainable world. 