Mark Wheeler

Sir David Attenborough unveils the two stunning underwater realms of Saudi Arabia - the flamboyant Red Sea and the contrasting hot muddy Gulf, capturing for the first time the rare event of Palolo worms spawning at night.

Otters are playful, adaptable and champion swimmers - they've captivated cameraman Charlie Hamilton James for the last 25 years. He's filmed them more than anyone else and now, through the eyes of three orphaned river otters, a set of groundbreaking experiments and some incredible wild encounters, Charlie wants to reveal their survival secrets and exactly why he believes they're so special.

In a seasonal special, Gordon Buchanan meets the animals who live in nature's winter wonderlands. He reveals their survival secrets, from the polar bear mother who gives her cubs the best possible start in life to the owl that finds food hidden beneath a blanket of snow, plus the plucky penguins that huddle together to keep warm. Gordon also unwraps the lives of our favourite Christmas characters - those wonderful reindeer and our very own robin redbreast!

In a seasonal special, Gordon Buchanan meets the animals who live in nature's winter wonderlands. He reveals their survival secrets, from the polar bear mother who gives her cubs the best possible start in life to the owl that finds food hidden beneath a blanket of snow, plus the plucky penguins that huddle together to keep warm. Gordon also unwraps the lives of our favourite Christmas characters - those wonderful reindeer and our very own robin redbreast!

A team heads to Antarctica to study killer whales that create waves to wash seals off ice.

A team heads to Antarctica to study killer whales that create waves to wash seals off ice.