Only four times in Stanley Cup Playoffs history has a team erased a 3–0 deficit and come back to win the series.

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

Secrets of the Penguins premieres April 20 at 8/7c on National Geographic, with all episodes streaming April 21 on Disney+ ...

Ahead of Earth Day, a sneak peek for National Geographic's The Secrets of the Penguins is revealed. Watch it here!