What is the primary adaptation that helps polar bears stay warm in the Arctic?

A thick layer of insulating fat

How does a polar bear's sense of smell aid in its survival?

It allows them to locate prey hidden under thick ice and from long distances.

The fat provides essential insulation and energy for the polar bear.

Wide paws with small, soft bumps for grip

Their wide paws act like snowshoes, distributing their weight and preventing them from sinking into the snow. The bumps provide grip on ice.

I can analyze the adaptations of polar bears to their Arctic environment.

1
Polar bears have a thick layer of fat, about 10 centimeters thick, to keep them warm in the Arctic.
2
A polar bear's sense of smell is about 100 times stronger than a human's, helping them to hunt seals under the ice.
3
Polar bears have large paws, about 30 centimeters across, with soft bumps for grip, which act like built-in snowshoes.