Polar BearPolar bears are truly majestic animals: the largest land dwelling carnivore on earth, they can measure up to 3 metres in length and weigh up to 700 kilograms. They are also iconic in other waysa symbol of the climate change debate, with their survival now threatened by the loss of Arctic ice. Their images decorate fountains and the cornices of buildings across Europe. They sell cold drinks. They feature in children's books, on merry go rounds, and