Deepest polar bear (white bear)
Last updated: June 27, 2018 at 19:22 pm
Up to 6 m (20 ft) — While underwater, the polar bear (Ursus maritimus) shuts its nostrils and flattens its ears but its eyes stay open to spot prey. Although it is considered a marine mammal, the polar bear is the largest land carnivore, and because its habitat is largely devoid of vegetation, it is the most carnivorous of all bear species. Hunting dives are rare since the polar bear is typically a stealth predator and because its coat is highly buoyant. It can nonetheless remain underwater for over three minutes and swim for hundreds of kilometres. It has no natural predators and does not fear humans, especially seal-like divers, which makes it a very dangerous animal. The polar bear is known as nanook by the Inuit.