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WHERE IT LIVESPolar bears live in the Arctic. They do not stay in one place. They travel across the snow and pack ice looking for food POLAR BEAR

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1. Polar bears are strong swimmers; They can swim for several hours at a time over long distances.

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2. A thick layer of blubber (fat), up to 11 cm (4.3 in.) thick, keeps the polar bear warm while swimming in cold water). 3. The hair of a polar bear easily shakes free of water and any ice that may form after swimming. 4. A polar bear's nostrils close when under water.

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5.The polar bear is so strong it can kill an animal with one blow to the head.

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To retain heat, penguins may tuck in their flippers close to their bodies, this reduces the surface area available for heat loss.  They also may shiver to generate additional heat

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1) A fat layer (blubber) improves insulation in cold water. 2)Cold climate penguin species usually have longer feathers and thicker blubber. 3) The dark colored feathers of a penguin's dorsal (back) surface absorb heat.

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Overlapping densely packed feathers make a surface almost impenetrable to wind or water. Feathers provide waterproofing in water that is critical to penguins survival in water.

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Penguins must remain active while in water to generate body heat.

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THE ARCTIC FOX is hard to see in the snow. It has a thick white coat of fur for the winter. In the summer the coat is brownish-gray

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