(FILES) British broadcaster and biologist David Attenborough speaks during the opening ceremony of the COP26 UN Climate Change Conference in Glasgow, Scotland on November 1, 2021. David Attenborough, a leading voice on climate change and biodiversity loss, whose landmark documentaries transformed popular understanding of the natural world for a global audience, is set to mark his 100th birthday on May 8th. (Photo by Jeff J Mitchell / POOL / AFP via Getty Images)