Award-winning biologist, bestselling author, iconic broadcaster, owner of one of the world’s most recognisable voices, and – as of today – a centenarian. The vast majority of us have never known life without Sir David Frederick Attenborough’s trademark awestruck narration emanating out of our televisions.

For decades, he’s been introducing us to wildlife wonders and passionately advocating for environmental preservation. In the process, his wise face and reassuring whisper have made him the nation’s surrogate grandfather. Few people in history have had such a powerful impact on how we view our planet.

Even at the grand old age of 100, the tireless hero continues to inspire, enlighten and entertain us. A prolific recent burst of activity has seen him broadcast three new projects already this year. And tonight (8.30pm, BBC One), Kirsty Wark will host a star-studded event live from the Royal Albert Hall celebrating Attenborough’s career, soundtracked by the BBC Concert Orchestra.

In birthday tribute to the great man, I’ve selected the most memorable moments from his mighty body of work – from greeting cannibals to being tickled by baby gorillas, from bonding with rhinos to walking with royals. This is Sir David Attenborough’s world. All we can do is sit back, marvel at it and try to preserve it for future generations. Happy 100th, Sir Dave, and thank you for everything.