BBC Earth on Instagram: "Can penguins fly?  Scientists theorise that penguins used to be able to fly, but that their wings became better adapted to swimming with evolution, and less suited to flight. Now, their flippers are well designed for seamlessly diving into the ocean, but nothing stops them from flapping them on land! #EarthCapture by @myeonghoseo . . . . #Penguin #Antarctica #ArcticAnimals"

Penguins: Life in the World's Coldest Climates | Masters of Ice & Ocean