Appearance

The polar bear can be up to 3m long. It has a huge weight of 650-680 kg (1500 pounds) male. Females are a lot smaller and their weight is about 300 kg (600 pounds). The polar bear has two white coats. It has a coat that repels water to help the bear swim.
It has a long white neck. Its huge webbed feet helps it glide swiftly through the water. It has five sharp claws on each foot, that means there are 20 in total. The claws help the polar bear hunt seal.
A polar bear has two small white ears and a small back nose that helps the polar bear smell the seals it hunts. It has a large amount of blubber under its fur and the layer of blubber is 10cm thick.
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Habitat

The places where a polar bear lives are pretty much anywhere cold. They live in the North Pole, Canada, and Greenland. Female polar bears live in dens with 1-2 cubs. Male polar bears simply lie down until they get covered in snow. A polar bear den is like a refrigerator, but it's warmer in the den then it is outside. There is hole in the top of the den. It gives the mama polar and her cubs air.
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Diet

The polar bear is a carnivore, that means they eat meat. Some of his favourite meats are ringed seal, dead whales that are washed up on the ice, walrus, fish, and smaller polar bears, that means they are cannibals. The polar bear's favourite food is seal. It uses its keen sense smell to find a seals breathing hole. When the seal surfaces the polar bear catches the seal. A polar bears diet changes in the summer. In the summer a polar bear eats plants, berries, mice, rabbits, and bird eggs.
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Predators

Although a polar bear's life might seem like they don't have enemies, all animals have predators. A polar bear has enemies too. Other polar bears, walruses, and Orcas can all be enemies.

Surprisingly enough, male polar bears can be enemies to small cubs.

People are an enemy too. The biggest threat is global warming. It's melting the ice and causing polar bears to swim to ice that isn't there. Or, they go to more permanent ice.

We need to try and stop global warming. Polar bears need help.
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Offspring

Polar bears have cubs just like every other bear. Here are some facts about polar bear cubs.
A polar bear has 1-3 cubs ever 2 years. Lots of polar bear cubs die because they are born with no fur. A cub is called a boar. Female cubs are called sows. It is the same as pigs.
A polar bear can have cubs at 5-6 years. Mama polar bears gain weight before they have cubs. Cubs drink their moms milk. Cubs can leave the den at 4 months old.
The polar bear is an interesting animal and so are its cubs.
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Cool Facts

Polar bears really are very interesting. I have tons of cool fact about them. Here they are:
Polar bears have 3 nicknames: nanookapick, great bear, and ice bear. Nanookapick means great bear. Great bear is probably a nickname because they are the biggest bears in the world. Ice bear is a nickname because they live on the ice. They have sharp canine teeth designed to rip and tear. An amazing sense of smell belongs to the polar bear. It helps it find food.

A polar bear lives in Canada just like me. A polar bear runs really fast, in fact, they run at 50 km an hour

A polar bear is really cool.


Adaptations

A polar bear has adapted over millions of years. Polar bears can live in a climate like the arctic because of those adaptations.
Their feet are like slippers to help stay warm. A polar bear's feet are webbed so they can glide swiftly through the water.
Their camouflage white fur helps them hunt seals. It's hard to see a polar bear when you have eye sight like a seal. The polar bear's fuzzy white fur helps keep him warm. More hairs on top keep him dry when he is swimming. Blubber, 10 cm thick is under the fur. It helps him stay extra warm.

Polar bears run really fast, 50 km an hour in fact. That's fast! Did you know that polar bears originally came from brown bears? They adapted from brown bears into polar bears.

That`s how polar bears became what they are today.
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References
http://www.canadiangeographic.ca/kids/animal-facts/polar_bear.asp
http://www.aitc.sk.ca/saskschools/arctic/pbear.html
Squire, Ann O. Polar Bears. Toronto: Chidren's Press, 2007.
Mc Dermont, Barb and Mc Keonwn, Gail. All About Canadian Amimals Polar Bears. Edmonton: Reidmore Books, 1998.