because they need to get there food or to get to land.
No polar bears use their large paws to help them swim because they sometimes swim up to 60 miles without resting.
polar bears are big to keep them up when they are in the water.
Polar bears can live up to thirty years.
Polar bears have been known to swim extremely long times and cover hundreds of miles. Recently a polar bear fitted with a tracking device managed to swim for over 9 days and covered 426 miles.
polar bears can get up to 500 to 2,000 pounds or 227 to 907 kg.
black bears - up to 60 mph but grizzly bears can swim forever apparently. and they can swim for up to a minute underwater (:
Wild polar bears are found up north in the Arctic. You will NEVER find a polar bear in the Antarctic.
polar bears are big to keep them up when they are in the water.
Polar Bears migrate with their young every year. When temperatures warm up Polar Bears migrate to land to find food.
I think you got mixed up. I think you mean to say " Where do Polar Bears live " Polar Bears live in the North Pole.
Global warming is a factor when it comes to polar bears going endangered. The warmer climate that is caused by more energy, oil, coals to heat our cities the warmer the climate therefore as heat rises the earth core gets hotter and therefore the ice melts leaving the polar bears with less ice and more water, and although polar bears are excellent swimmers they have to swim over 50 miles to find seals which by that time seals can escape faster and polar bears are exhausted from there journey. This is why you see so many polar bears floating in the waters; mostly their cubs (die from exhaustion and lack of food). Seals (main food source) for polar bears were easier to catch when the seal had to come up for air (through the ice) the polar bear would wait and catch it, now they have to swim far away to find seals because there is less and less of ice.
Polar Bears live about 20-30 years in the Wild.... in captivity they can live up to 45 years You can find out how old a polar bear is by removing a tooth (but be very careful when you do this!). There is a ring on the tooth for each year that the polar bear is alive. Just like with trees. Female polar bears live up to their late 20's Male polar bears live up to 20 years old