Jane Goodall, a renowned researcher who documented the behavior and social lives of chimpanzees and later became a leader of the animal conservation movement, died Wednesday. Goodall was 91. She died of natural causes while she was in California as part of a speaking tour, the Jane Goodall Institute announced in a statement. "Dr. Goodall’s discoveries as an ethologist revolutionized science, and she was a tireless advocate for the protection and restoration of our natural world

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