Secrets of the Penguins cinematographer, Bertie Gregory, shares the memorable moment he filmed baby penguins leaping from a 50-foot cliff with PEOPLE.

Explorer Bertie Gregory invites viewers behind the scenes of his two-year Antarctica trip. National Geographic invites ...

Penguins are known for their lifelong love bonds, but what makes them so loyal? Discover the secrets behind their unique mating habits, the science of their bonds, and the incredible devotion they ...

National Geographic celebrates Earth Month with some flightless, feathered friends in "Secrets of the Penguins," streaming ...

A three-part documentary on penguins' hidden lives will reveal a number of never-before-seen moments. Here's what executive ...