What’s more， this polar bear was too clean to have made such a trudge， the newspaper reported. They told the newspaper it's possible that poachers released the animal to avoid being caught and punished. Polar bear poaching has been banned in Russia for more than 60 years. Still， it has been estimated that as many as 200 of them are killed each year in the Far East region.As The Washington Post's Isaac Stanley-Becker reported， polar bears “are classified as a vulnerable species because of the ongoing and potential loss of their sea ice habitat resulting from climate change”， according to the World Wildlife Fund. It was not clear what would be done with the polar bear in the future as it looked too weak to be taken back to its natural habitat.來源：瘋狂英語·讀寫版
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