北极熊的剩余海豹杀死了北极的拾荒者 但气候变化威胁着这个重要的食物来源 Polar bears' leftover seal kills feed Arctic scavengers, but climate change threatens this vital food source.

一项新的研究显示,北极熊每年向北极的拾荒者提供数百万公斤食物,如狐狸和乌鸦,在打猎后留下海豹残骸。 A new study reveals polar bears provide millions of kilograms of food annually to Arctic scavengers like foxes and ravens by leaving behind seal remains after hunting. 研究人员估计每年剩下760万公斤腐肉,支持至少11种物种。 Researchers estimate 7.6 million kg of carrion is left each year, supporting at least 11 species. 由于气候变化减少了北极熊数量和海冰,这一关键粮食来源正在减少,威胁到北极食物网,并突显了紧急养护的必要性。 As climate change reduces polar bear numbers and sea ice, this critical food source is declining, threatening the Arctic food web and highlighting the need for urgent conservation.