The duck that doesn't stop eating 🦆 The eider duck (Somateria mollissima) is often described as the toughest duck in the world, but with the amount it eats a day, it could also be called the greediest! Meet the animals inhabiting our fragile frozen worlds. This is life on thin ice. ❄️ #FrozenPlanet2 Find out where to watch 👉 https://www.bbcearth.com/shows/frozen-planet-2 | BBC Earth