For Jane Goodall, that 2014 embrace with a rescued chimp called Wounda at her institute's sanctuary in the Republic of Congo was yet another vindication of her life's work.

The conservationist, who died aged 91 on Wednesday, challenged how we relate to the natural world.

Accepted by chimps on the shores of Lake Tanganyika as a ‘peculiar, white-skinned ape’, she discovered that they ate meat and made tools