Polar bears are the largest land carnivores in the world. 

They have thick fur that traps warm air and keeps them warm. 

They have a dense layer of fat that helps them stay warm. 

They have large anti-slip paws. 

They hunt seals, walruses, and beluga whales. 

They are usually solitary but can be found in groups when on land. 

They are threatened by climate change, pollution, and energy development.