How do polar bears swim long distances?

Polar bears swim long distances using their strong front paws, which act like paddles, while their back legs steer. They have a thick layer of blubber that provides buoyancy and insulation against freezing waters. Their streamlined bodies and large lung capacity enable them to swim for hours in search of food or ice. Polar bears are known to travel up to 100 kilometres in a single swim, showcasing their remarkable endurance and adaptation to the Arctic environment.