(FILES) Britain's Prince William (C), Britain's Catherine (R) and David Attenborough (L) attend the naming ceremony of Britain's new polar research ship, the RRS Sir David Attenborough in Birkenhead, northwest England on September 26, 2019. 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, marks his 100th birthday on May 8, 2026. (Photo by Paul ELLIS / AFP via Getty Images)