Mammals Polar Bear

Marine mammal protection act of 1972 protects polar bears. The polar bear ursus maritimus is a hypercarnivorous bear whose native range lies largely within the arctic circle encompassing the arctic ocean its surrounding seas and surrounding land masses it is the largest extant bear species as well as the largest extant land carnivore.

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Learn more fascinating polar bear facts and find out about our work with tracking polar bears in the arctic.

Mammals polar bear. A boar adult male weighs around 350 700 kg 770 1 540 lb while a sow adult female is about half that size. When sea ice forms over the ocean in cold weather many polar bears except pregnant females head out onto the ice to hunt seals. Also scientists can extract polar bear dna from just their footprints in the snow.

Polar bears roam the arctic ice sheets and swim in that region s coastal waters. They are very strong swimmers and their large front paws which they use to paddle are slightly webbed. Scientists and specialists study polar bear biology including polar bear reproduction birth and care of young and communication.

As with other marine mammals found in the united states the u s. Polar bears are the only bear species to be considered as marine mammals.

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