Polar bear
From Tardis Wiki, the free Doctor Who reference
Polar bears were a type of bear typified by their all-white pelts, and the fact that they typically lived in cold climates. uring a mission for Santa Claus, the First Doctor encountered and was menaced by a polar bear, but was rescued by John and Gillian, who used the Doctor's model-making machine to reduce the bear to miniature size. (TVC: A Christmas Story)The Eleventh Doctor's Visual Recognition System once identified a drawing of a Krafayis as a polar bear. (DW: Vincent and the Doctor)
