💔”Heartbreakingly t:ɾɑgic…”: The deeply emotional SECRETS behind the life of Sir David Attenborough have left many in tears — as he celebrates his 100th birthday…😢

EXCLUSIVE: Sir David Attenborough’s greatest tragedy as he celebrates his 100th birthday

Sir David Attenborough’s documentaries made him a beloved TV icon, but behind the scenes his career came at a personal cost – here’s the story of his life, including marriage to wife Jane and her death in 1997

David and his late wife, Jane Oriel, were married for nearly 50 years

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David and his late wife, Jane Oriel, were married for nearly 50 years

The unmistakable voice of Sir David Attenborough has been a constant source of inspiration and wonder to millions during his eight decades of natural history programming. And as he celebrates his 100th birthday on Friday, 8 May, the Mirror looks back on Sir David’s extraordinary life and career.

From Zoo Quest in 1954, through his countless TV programmes, many of us feel like we know the broadcaster, who has touched all our lives with his remarkable and fascinating documentaries.

His 1979 series, Life On Earth , marked a turning point, not just for David’s career, but for TV itself. When it was first screened on 16 January 1979, it captured the imagination of the nation. Not only did it pull in an astonishing 15 million viewers per episode in the UK, it was also a huge hit overseas, watched by a reported 500 million people worldwide and earning its presenter global recognition.

Sir David Attenborough has been a constant source of inspiration and wonder to millions during his eight decades of natural history programming

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Sir David Attenborough has been a constant source of inspiration and wonder to millions during his eight decades of natural history programming

As well as celebrating the natural world, he also showed he was decades ahead of his time in terms of environmental issues, warning viewers they had “an awesome responsibility” to protect the planet.

Over the years, Sir David has thrilled audiences with a succession of jaw-dropping documentary programmes including, in 1984, The Living Planet , which examined how animals – including humans – have adapted to extreme and hostile living environments around the globe.