Who is the most fit got the environment from the polar bears?

Polar bears are highly adapted to their Arctic environment, making them one of the most fit species for these conditions. They possess thick fur and a layer of blubber for insulation against the extreme cold, and their white coloration provides Excellent camouflage on snow and ice. Additionally, their keen sense of smell enables them to detect seals, their primary food source, from great distances. These adaptations allow polar bears to thrive in a challenging and changing ecosystem.