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.
Blake Lively
Bertie Gregory
Score: 10.0
Score: 7.1
Score: 9.5
Score: 8.0
Score: 2.0
Score: 7.9
Score: 0.0
Score: 6.3
