Polar Bear Stands Her Ground to Feed Her Cubs | Life | BBC Earth

Competition for food is fierce in the Arctic circle, but this courageous polar bear risks her life to feed her cubs. Subscribe: http://bit.ly/BBCEarthSub #PolarBear #davidattenborough #bbcearth Watch more: Planet Earth http://bit.ly/PlanetEarthPlaylist Blue Planet http://bit.ly/BluePlanetPlaylist Planet Earth II http://bit.ly/PlanetEarthIIPlaylist Planet Dinosaur http://bit.ly/PlanetDinoPlaylist Life David Attenborough narrates a breathtaking ten-part blockbuster that brings you 130 incredible stories from the frontiers of the natural world. Discover the glorious variety of life on Earth and the spectacular and extraordinary tactics animals and plants have developed to stay alive. Cutting edge cinematic techniques capture unprecedented, astonishing sequences, including birds running and dancing on the water's surface in intricate displays of courtship and fidelity, fish outwitting predators by using their fins to take flight, flies competing in a mesmerising eyeball inflation c