Polar bear the polar bear in advertising, while Fox's Glacier Mints have featured a polar bear named Peppy as the brand mascot since 1922. Polar bears are popular in fiction, particularly in books for children or teenagers. For example, "The Polar Bear Son" is adapted from a traditional Inuit tale. The animated television series "Noah's Island" features a polar bear named Noah as the protagonist. Polar bears feature prominently in "East" (also released as "North Child") by Edith Pattou, "The Bear" by Raymond Briggs (adapted into an animated short in 1998), and Chris d'Lacey's "The Fire Within" series. The "panserbjørne" of Philip
Polar bear is based on analysis of the complete genomes (rather than just the mitochondria or partial nuclear genomes) of polar and brown bears, and establishes the divergence of polar and brown bears at 400,000 years ago. However, the two species have mated intermittently for all that time, most likely coming into contact with each other during warming periods, when polar bears were driven onto land and brown bears migrated northward. Most brown bears have about 2 percent genetic material from polar bears, but one population, the ABC Islands bears has between 5 percent and 10 percent polar bear genes, indicating more