Get more out of Mountain Lake PBS series and specials with Watch & Wonder Program Highlights. Watch "NOVA: Black Hole ...

In Us Weekly’s exclusive sneak peek at the show, which premieres on Sunday, April 20, Lively takes viewers through an interaction between two emperor penguins and their adorable chicks.

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

From diving off cliffs to starving for months, emperor penguins are continuing to surprise scientists with their ability to adapt to one of the world’s most extreme environments. LEAP OF ...