Polar Bears need chunks of ice to rest on when they take breaks from their long swimming sessions. According to the Los Angeles Times, thanks to GPS tracking technology we now know exactly how long these incredible beasts could swim just to reach that elusive piece of ice. The article cites a scientific publication which reported that a polar bear with a GPS tracker strapped around its neck swam for nine days and an astonishing 426 miles across the Arctic Ocean before it was able to find a solid surface to rest on. Its young cub that started the journey perished along the way. more »