The polar bears’ “threatened” classification, which was initially granted in 2008 by the Endangered Species Act, may have slowed down some efforts by hunters and poachers to turn more than a few polar bears into food and clothing. This is far from enough to keep the polar bear population from reacting adversely to the loss of habitat and potential food sources in the future. According to the Pacific Marine Environmental Laboratory, there are a multitude of considerations that factor into the long-term survival of a polar bear population’s success in the wilderness. One example is the way that increased or decreased snowfall can pose difficulties in hunting prey or building a nest.
One group of roughly 300 polar bears in Greenland, out of around 22,000 to 31,000 total surviving polar bears living in the wild, is surviving in ways that many marine biologists did not initially expect. A report by Science suggests that the aforementioned population may be able to outlive their purely terrestrial peers by surviving on the slopes of fjords — rivers that flow through chasms with steep cliffs or slopes on both sides.
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