According to Polar Bears International, polar bears have adapted to challenges facing the species since it evolved and are currently in the process of adapting to new challenges, such as climate change. According to Defenders of Wildlife, polar bears have thick fur and blubber that adapt them to their environment by keeping them warm and buoyant. They also evolved large feet that help them to swim.Continue Reading
Polar Bears International, a non-profit organization dedicated to the species' survival, notes that polar bears diverged from their common ancestor with brown bears at least 4 million years ago. At this time, they began to evolve the traits that helped them adapt to a life spent in the icy polar regions. Additionally, because they capture most of their food in the ocean, they acquired important swimming adaptations, such as a streamlined face, states Defenders of Wildlife.
World Wildlife Fund reports that polar bears live across a vast range that encircles the North Pole. Scientists split the bears into 19 different subpopulations. Each population must adapt to the unique challenges it faces; some subpopulations may not be able to adapt to their changing habitat. The World Wildlife Fund holds that five of the 19 subpopulations are currently in decline.Learn more about Bears
Polar bears are migratory mammals that live in the Arctic Circle. Some polar bears have small migratory areas of around 20,000 square miles, while others have larger patterns that can be more than 130,000 square miles. Polar bears, with the exception of pregnant females, do not hibernate.Full Answer >
Polar bears are considered threatened because their population is declining due to habitat loss. However, as of 2015 they are not considered endangered by any major country or organization.Full Answer >
According to Seaworld Parks and Entertainment, polar bears communicate with both vocal and non-vocal language. The animals use sounds such as hissing or growling to convey mood or emotion. They also use body language to let other bears know their intentions. This often involves touching the other bear with a paw.Full Answer >
Polar bear predators include humans and other polar bears. Polar bear cubs are also prey to wolves. While polar bears are not prey to walruses, the animals do pose a threat to the bears as rivals on the food chain, particularly when the animals hunt in water.Full Answer >