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

Footage Bertie Gregory filmed for National Geographic's 'Secrets of the Penguins' captures baby penguins making daring leaps ...

A deep and exclusive look inside National Geographic's ambitious Secrets of the Penguins with host Bertie Gregory.

Secrets of the Penguins is the latest entry in National Geographic's Secrets of series after whales, octopi and elephants, ...

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

These emperor penguin chicks showed extreme bravery in the new Secrets of the Penguins documentary through National ...

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

James Cameron wasn’t near the penguins this time around, but he is extremely familiar with their environment. “When I went to ...

The documentary, made by National Geographic, is hosted by wildlife filmmaker Bertie Gregory and narrated by Blake Lively.

The new National Geographic series, “Secrets of the Penguins,” premieres Sunday, April 20 at 8 p.m. ET. Stream the first ...

National Geographic's upcoming docuseries, 'Secrets of the Penguins,' captured a shocking encounter between a mother ...

Footage Bertie Gregory filmed for National Geographic's 'Secrets of the Penguins' captures baby penguins making daring leaps Kelli Bender is the Pets Editor at PEOPLE. She has been working at ...