Dame Jane Goodall, one of the world’s most celebrated conservationists who chronicled the lives of chimpanzees in East Africa, has died aged 91.

Her death, while on a tour of the US, was confirmed today in a Facebook post by the Jane Goodall Institute.

The post said she ‘passed away from natural causes’ in California.

It added: ‘Dr Goodall’s discoveries as an ethologist transformed science, and she was a tireless advocate for the protection and restoration of the natural world.’

Born in London in 1934, Dr Goodall began researching free-living chimpanzees in the Gombe Stream Chimpanzee Reserve in what is now Tanzania in 1960.

She travelled there despite having no experience or even a university degree to do what she loved – observe and write about animals.

For three years, Dr Goodall

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