Conservationist Dame Jane Goodall, a world-leading expert on chimpanzees, has died aged 91.
Her observations helped to reveal how closely related humans are to chimpanzees. She also worked tirelessly for conservation projects around the world.
Dr. Goodall died of natural causes while in California on a speaking tour of the US, according to a statement from the Jane Goodall Institute.
It said her discoveries revolutionised science and that she was a tireless advocate for the protection and restoration of our natural world.
The United Nations mourned the loss of Dr. Goodall, highlighting her dedication to the planet and its inhabitants, while Greenpeace expressed heartbreak, endorsing her as a true conservation giant.
Naturalist Chris Packham referred to her as a hero and noted the tragic loss of such a passionate figure during critical times for earth's biodiversity.
Born in 1934 and raised in London, Dr. Goodall was inspired by children's literature about animals. Her groundbreaking research began in the 1960s when she became the first to document chimpanzees using tools.
Throughout her illustrious career, she published influential studies that changed perceptions of animal intelligence and behavior. Her Jane Goodall Institute continues to promote conservation efforts globally.
Dr. Goodall was active until her death, inspiring countless individuals with her unwavering commitment to the environment and animals.