An ice day to play

Bear with us as we head north for International Polar Bear Day, highlighting the challenges faced by the world's largest bear species. It was set up by Polar Bears International, an organization dedicated to protecting these mammals and their habitat. The date was chosen to coincide with the time when cubs are in their dens being protected by their mothers, as this is the most vulnerable time in a polar bear's life.
© Piriya Photography/Getty Images