

Over two extraordinary years, National Geographic Explorer Bertie Gregory discovered never-before-filmed secret traditions, surprising intelligence and close-knit…
TV-PG • Documentary • Series • 2025 • 1 season
Starring: Blake Lively, Bertie Gregory

S1 E1 - Heart of the Emperors
In Antarctica, emperor penguin societies reveal mysterious bonds forged from birth. These bonds are the secret to surviving their extreme world.
Apr 20, 2025 • 47m

S1 E2 - Survival of the Smartest
The banded penguins venture far beyond their icy homes, mastering deserts, tropical islands—and even city life—to become perhaps the smartest of all.
Apr 20, 2025 • 43m

S1 E3 - Rebels with a Cause
In the Southern Ocean, courageous penguins break the rules to find their edge. Taking risks helps make them the most successful of all.
Apr 20, 2025 • 47m
Secrets of the Penguins
Over two extraordinary years, National Geographic Explorer Bertie Gregory discovered never-before-filmed secret traditions, surprising intelligence and close-knit societies of penguins. This astonishing series reveals they are more like us than we ever dreamed, from their powerful friendships to the courageous risk-takers using ingenuity and innovation in some of the world's most extreme places.
TV-PG • Documentary • TV Series • 2025