Jane Goodall, the British primatologist whose groundbreaking research on chimpanzees transformed the field of ethology and inspired generations of conservationists, has died at 91. The Jane Goodall Institute said she died on Wednesday of natural causes while in California for a speaking tour in the United States. “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. “Today, the UN family mourns the loss of Dr. Jane Goodall. The scientist, conservationist an...