Here are some facts about polar bears:

Habitat: Polar bears live in the Arctic Ocean, in Alaska, Canada, Greenland, Norway, and Russia. 

Size: Polar bears are the largest land carnivores. 

Swimming: Polar bears are excellent swimmers and can swim for days at a time. 

Hunting: Polar bears hunt seals, beluga whales, young walruses, and other prey from the ice. 

Adaptations: Polar bears have thick fur, black skin, and a layer of fat called blubber to keep warm. 

Threats: Climate change is the biggest threat to polar bears. As the climate warms, sea ice melts earlier and forms later, which reduces the time polar bears have to hunt. 

Classification: Polar bears are classified as marine mammals because they spend so much time on the ice. 

Scientific name: The scientific name for polar bears is Ursus maritimus. 

Population: The polar bear population is declining. 

Other facts: Polar bears have 42 teeth, an incredible sense of smell, and slightly webbed paws.