To set the record straight Polar Bears are amazing swimmers who have adapted to life on melting ice sheets.
They have an innate sense of direction that allows them to navigate to an and they can swim for very long distances and time without ever touching dry land.
There is documentation that polar bears can swim for at least nine straight days in the open ocean while swimming a distance of 500 miles through the open ocean.
They also can hunt while swimming in the water.
Broken and melting ice sheets are the polar bears favorite habitat because there are seals and other marine life concentrated in the areas where the ice sheet has broken up and there is open water.
Polar bears caught on an open ice sheet have nothing to eat and will eventually starve if they can't find a break in the ice.
Absolutely right. Polar bears are also known as marine bears.