This body of work should be both original and outstanding. More than 5,000 male emperor penguins huddle on the sea ice, backs to the wind, heads down, sharing body heat. ‘It was a calm day,’ says ...

Emperor penguins have the deepest and longest dives for any bird ... They also work together to keep warm by huddling up in large groups, shuffling round so each gets a turn in the warm centre.

Temperatures can reach -76°F. With winds of up to 100 mph, the male emperor penguins huddle together for warmth, alternating ...

The largest of the penguins, the emperor, can survive temperatures lower ... Temperatures in the centre of a huddle can reach up to 37 °C, more than 80°C warmer than the outermost layer of ...

In this clip from the BBC Select documentary Penguins: Spy in the Huddle, we see an emperor penguin meet his chick for the first time - and we learn about the special relationship between father ...