Quote:The world-renowned primatologist Jane Goodall has died at the age of 91, her institute has said.

The Jane Goodall Institute announced that she had died of natural causes while in California as part of a US speaking tour.

“Dr Goodall’s discoveries as an ethologist revolutionised science,” the statement read. “She was a tireless advocate for the protection and restoration of our natural world.”

Born in London in 1934, Goodall began researching free-living chimpanzees in Tanzania in 1960. In 1977 she founded the Jane Goodall Institute, which works to protect the species and supports youth projects aimed at benefiting animals and the environment.

She was considered the leading expert on chimpanzees, her career spanning more than 60 years. Her research was pivotal in proving the similarities in primate and human behaviour.