The colorful, dancing lights of Alaska's aurora borealis shine in this stunning time-lapse. See more: http://on.natgeo.com/1Pp51gK | National Geographic

Alaska: home to the small, big, and even bigger. Though they may fear one another, nature binds them together. But, as the bitter winter melts away, the changing climate brings a new threat to their survival. Will this be their last winter? Tune into Wild Alaska all this month, starting June 7th, only on National Geographic WILD UK. | National Geographic UK

Alaska is home to creatures of all shapes and sizes, but not many come close to bears found in the Alaskan wilderness. During the brief window of a salmon run, mainting social rank is vital for a bear's survival. Falling from a position of power, both physically and metaphorically, could mean life or death. Tune into Alaska's Deadliest, Wednesdays at 8pm as part of Wild Alaska, only on National Geographic WILD UK. | National Geographic UK