Posted 16 minutes agoSubscribe to BuzzFeed Daily NewsletterCaret DownJane Goodall, The World's Most Famous Primatologist, Has Died At 91The Jane Goodall Institute said Goodall was on a speaking tour in California at the time of her death.by Ryan GrenobleHuffPost WriterFacebookPinterestLink Jane Goodall, the world's most famous primatologist, died Wednesday at the age of 91, the Jane Goodall Institute announced on social media. Araya Doheny / Getty Images According to the Institute, Dr. Goodall passed away "due to natural causes" while in California as part of a speaking tour of the United States. Cbs Photo Archive / Getty Images "Dr. Goodall's discoveries as an ethologist revolutionized science, and she was a tireless advocate for the protection and restoration of our natural world," the Institute said in a statement. View this photo on Instagram @janegoodallinst/Instagram / Via instagram.com This is a developing story. Please check back for updates.

This article originally appeared on HuffPost.