Jane Goodall, conservationist and chimpanzee expert, dies aged 91

Jane Goodall, the British conservationist and primatologist renowned for her groundbreaking research on chimpanzees, has died aged 91.

The Jane Goodall Institute announced in a Facebook post on Wednesday that Goodall died of natural causes in California during a speaking tour in the United States.

“Dr Goodall’s discoveries as an ethologist transformed science, and she was a tireless advocate for the protection and restoration of the natural world,” the institute said.

Born in London in 1934, Goodall began researching free-living chimpanzees in Tanzania in 1960.

She observed a chimpanzee named David Greybeard make a tool from twigs and use it to fish termites from a nest, a ground-breaking observation that challenged the definition of humans as the single species capable of making tools