If you are a man displaying symptoms of an enlarged prostate, you should contact your doctor and consider getting tested. Symptoms primarily involve difficulty urinating: pain, a slow flow, trouble starting and stopping, or a bloody discharge.
Importance of polar bears. Polar bears are at the top of the food chain and have an important role in the overall health of the marine environment. Over thousands of years, polar bears have also been an important part of the cultures and economies of Arctic peoples.Polar bears depend on sea ice for their existence and are directly impacted by climate changeâserving as an important indicator species.ffects of Climate Change. Polar bears depend on sea ice as a platform from which to hunt seals, rest and breed. For more than 20 years the summer sea ice has been decreasing in size and melting for longer periods of time.
A symbol of the Arctic, polar bears are the worldâs largest land predator and biggest member of the bear family. With heavy fur, blubber up to four inches thick and black skin that absorbs heat from the sun, polar bears are amazingly well adapted to the Arctic climate.hatâs happening now: Although polar bears received Endangered Species Act protection in 2008, the federal government is still failing to stop oil and gas activities in two of the Arcticâs most important polar bear habitats â the Beaufort and Chukchi Seas.