Melting Worlds

Cold-adapted animals are struggling more than most in a warming world, forcing them to change long-established behaviours to survive. From a snow leopard in the peaks of the Indian Himalayas, forced from his home by a rival male, to an Arctic ground squirrel in Alaska undertaking the coldest migration of any mammal, and a young Arctic fox in Svalbard facing her first winter alone, animals adapted to the cold are being pushed to their limits in a rapidly changing world.