Polar bears, the largest land meat-eating animals, feed mainly on seals (0) and sometimes on the meat of dead whales and walruses.
When there is no other food, polar bears will eat (26)
animal they can get, including fish and birds.
Polar bears need an average of 2 kg of fat per day (27)
get enough energy for the day.
They have 42 teeth, (28)
they use for catching food and fighting. Hibernating polar bears do not eat.
Polar bears have large paws that act (29)
snowshoes when they move over ice and snow. Each toe has a thick, curved claw.
The claws (30)
used for catching food and climbing on ice. Long hairs on their feet also help prevent slipping.
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