Polar bears are one of the greatest survivors of nature, as they are able to live and thrive in one of the world's most hostile environments.
Polar bears, one of the largest carnivores on Earth, could be added to the list of endangered species under the Endangered Species Act of extinction in the U.S. As they roam the Arctic sea ice, polar bears look for the cracks that are on the ice, to try to find ringed seals in the water, because these are their favorite food. Almost all the food of polar bears comes from the sea and includes, seals, fish, whales and up. The floating sea ice is a perfect way for the bears can get food. Unfortunately, every year more decreases the amount of ice floating in the Arctic region. The ice is melting as the Earth is warming. In the next two decades, it is possible that during the summer are no longer any sea ice in the Arctic Ocean. The pieces of sea ice are becoming smaller and are more distant. The bears must swim longer distances across the Arctic Ocean, 60 miles or more, to go from a piece of ice to another. Polar bears are adaptations that help them spend part of their time in water. His body is aerodynamic for the swim and has a thick layer of fat that keeps them warm. They also have small cloth between the fingers of his legs which help them swim. Polar bears are classified as marine mammals live, even if not all the time in the water such as whales, dolphins, manatees and other marine mammals.
Polar bears are moving towards the north coast of Alaska because the sea ice is melting and no longer connects to the coast. With lesser amount of sea ice, polar bears can not hunt as often as before, so he has to cope with smaller quantities of food. It has been reported that, occasionally, polar bears eat animals such as seal, we have to protect them and look for a solution that solves this problem because they are a very important part of the ecosystem.
Polar bears are moving towards the north coast of Alaska because the sea ice is melting and no longer connects to the coast. With lesser amount of sea ice, polar bears can not hunt as often as before, so he has to cope with smaller quantities of food. It has been reported that, occasionally, polar bears eat animals such as seal, we have to protect them and look for a solution that solves this problem because they are a very important part of the ecosystem.
