Ursus maritimus, commonly known as the polar bear, is adapted to life in the Arctic's icy conditions. It boasts a thick layer of blubber, a water-repellent coat, and large paws for swimming. These apex predators primarily hunt seals and play a crucial role in maintaining the marine ecosystem's balance.

Ursus maritimus, commonly known as the polar bear, is native to the circumpolar Arctic region. This includes the northernmost parts of North America (Canada and Alaska), Greenland, Svalbard (Norway), and Russia. Their range is primarily within the Arctic Circle, encompassing the Arctic Ocean and its surrounding seas and coastlines.

Polar bears inhabit the sea ice of the Arctic Ocean and its adjacent seas and coastlines. They rely on sea ice for hunting seals, their primary prey, and are well-adapted to the cold, icy conditions. The climate in their habitat is characterized by long, harsh winters with temperatures often dropping below -30°C (-22°F), and short, cool summers.

As apex predators, polar bears play a crucial role in maintaining the balance of the Arctic ecosystem. They primarily hunt seals, particularly ringed and bearded seals, which they catch from the edge of the sea ice. Their hunting strategy and ability to swim long distances are adapted to the dynamic and often harsh ice-covered environment. Seasonal variations in sea ice extent significantly affect their hunting success and, consequently, their distribution and survival.