To live in the cold a Polar Bear needs to eat lots. The food gives them energy and a layer of fat to keep them warm.
Teeth
Polar Bears have very big,sharp and strong teeth that help them to catch and eat seals.
Nose
A Polar Bear can smell a seal 1 mile away and under 3 feet of snow!!!
Eyes
Polar Bears have a protective layer over their eyes to protect them from the bright sun and it's glare off the ice. Their eyesight is the same as yours.