| polar bear |  | humans, killer whale, male walrus | Order Carnivora | bear | Ursus maritimus |  |  | liver that is poisonous to humans because of excess concentration of vitamin A | paddling only with its front feet |  | creamy white |  |  | Inuit for food and clothing | southern broken edge of the arctic ice pack | Family Ursidae |  | 
| polar bear cub | its mother for a year and a half | humans, killer whale, male walrus | Order Carnivora | polar bear | Ursus maritimus | less than 1 kg at birth | 30 cm at birth |  | paddling only with its front feet | 6 weeks of age | creamy white | at birth |  | Inuit for food and clothing | southern broken edge of the arctic ice pack | Family Ursidae | at birth |