Taking a wrong turn in the coldest place on earth could cost you your life... and almost did for hundreds of penguin chicks ...

"Secrets of the Penguins" cinematographer Bertie Gregory describes how the birds would practically "break the fourth wall" ...

Once the cameras were cold, they were cold.” In advance of the shoot, Gregory and his team freezer tested some camera options ...

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

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

Years of filming, often in extreme conditions, has provided new insights into the extraordinary challenges endured by ...

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

The amazing thing about filming penguins in the wild, “Secrets of the Penguins” cinematographer Bertie Gregory tells Variety, is that since the big birds don’t have land-based predators ...

The upcoming documentary 'Secrets of the Penguins', set to premiere on the eve of Earth Day, explores the challenges faced by ...

Bertie Gregory is the cinematographer and lead explorer in National Geographic's new docuseries, Secrets of the Penguins One of the show's episodes includes a look at the life cycle of the emperor ...