United Kingdom, Oct. 2 -- Prince William has paid tribute to Dame Jane Goodall and her "pioneering spirit".

The Prince of Wales shared a personal message on his and wife Catherine, Princess of Wales' Instagram account to honour the world-renowned primatologist after she died at the age of 91 on Wednesday (01.10.25) during a speaking tour in California.

William wrote: "The world has lost an extraordinary voice with the passing of Dame Jane Goodall.

"Her boundless curiosity, compassion, and pioneering spirit transformed our understanding of the natural world.

"She challenged us all to make a difference and inspired me and countless others to work to protect our planet.

"Jane Goodall made a difference."

The message was signed off with ...