How does a polar bear meet its needs for food water and shelter in its habitat?

They eat seal and carcasses. The Polar Bear's favorite food is the ringed seal, although they also hunt Bearded, Harp and hooded Seals. Polar Bears gather in groups when the food is scarce. When the food is scarce the Polar Bear also eats the carcasses of walruses, or whales such as the Narwhal, Beluga and bow head whales. Baby Polar Bears nurse and are fed with their mother's milk. They also eat small portions of what their mother kills.

Polar bears get their water from the chemical reaction that breaks down fat. This is why a polar bears diet is high in fat but low in protein. For example, when they hunt seals, polar bears will eat the blubber, but leave the rest behind for scavengers.

Polar bears are remarkably adapted to withstand the incredible cold (-70 below zero sometimes) of the Arctic north pole.

But when temperatures do get extremely cold, like -70 below zero, during a raging blizzard, polar bears will actually scrape a snow wall for protection against the wind. Polar bears will also dig a den in the snow to deliver their babies.

But most of the time in the winter, when temperatures just hit

-30 below zero, polar bears sleep out in the open on the snow. When the pack ice forms in deep winter, the polar bears go out on the ice to hunt seals. Polar bears think nothing of diving in and out of the frozen slushy water when traveling from ice floe to ice floe; and polar bears are great swimmers sometimes paddling miles out to sea away from any land or ice berg.