THE POLAR BEAR: VICTIM OF GLOBAL WARMING
In May 2000, the United States added the polar bear to the list of threatened species protected under the US. Endangered Species Act. Activists had supported the listing for a number of years, recognizing that polar ice cap was melting at even a greater rate than predicted with new estimates that it might melt completely by 2099 Polar bears reply on the ice cap to stage their hunting of ringed seals and other prey, so the loss of the ice poses a distinct threat to their survival. While a robust male polar bear can measure 11 feet tall and weigh up to 1,200 pounds, there is evidence that the species is losing its vigor and suffering a decline in size. There has also been a noticeable decline in the survival rate of cubs, which usually are born as twins in the winter
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