新天地棋牌下载官网

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                                  • 气候变暖致食物短缺 北极熊残忍捕食幼崽画面曝光

                                    JUYINGGUO《MEIRIYOUBAO》26RIBAODAO,《GUOJIADILI》ZAZHIYANJIUYUANZAIYICIJIDIKAOCHAZHONGBUZHUODAOLEYIZULINGRENBUHANERLIDEJINGTOU:YITOUXIONGXINGBEIJIXIONGLIESHATONGLEIYOUZAI,BINGCANRENDIJIANGQICHIDIAO。

                                    ZHEIDUANSHIPINSHI2015NIANXIATIANZAIJIANADADONGBEIBUBAFENDAOSHANGPAISHEDE。CONGSHIPINZHONGKEYIKANDAO,JINGUANMUXIONGSHITUBAOHUZIJIDEHAIZI,DANSHIXIONGXINGBEIJIXIONGHAISHIZAISHUNJIANJIUJIANGYOUZAISISUI,ERSHANGXINYUJUEDEXIONGMAMAWEILEBAOMINGZHINENGXIANTAOZOU。

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                                    《国家地理》杂志表示,在夏末和秋季,当海豹离开陆地返回海洋之后,北极熊会以幼崽为食。气候变化导致北极变暖,冰山融化,在捕食平台逐渐减少的情况下,北极熊越来越难找到食物。因此,北极熊可能就会选择捕食幼崽这种极端的方法来获得食物。(高琳琳)

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