After 71 years on our screens, the warm, plummy tones of David Attenborough's voice are easy to bring to mind. Take this quote from his new documentary, Ocean, where he's talking about a coral reef.

Sir David Attenborough is to mark his birthday ... Article continues below From orca teaching their offspring to hunt blue whales, orangutan showing their young how to make their beds and hippo ...

David Attenborough with orangutan and her baby at London Zoo, pictured in 1982 The TV presenter has two children, Susan and Robert, with his late wife Jane whom he married in 1950. In celebration ...

David Attenborough's latest documentary takes viewers on a breathtaking cinematic journey into the heart of the oceans. Dolphins glide through vast open waters, towering underwater mountain ranges ...