Starving polar bears turn to cannibalism。

　　最近拍摄到的照片显示，由于全球变暖导致猎食地消失，北极熊开始捕食同类。

　　New pictures show that polar bears are beginning to cannibalise each other as global warming destroys its hunting grounds。

　　北极熊通常在浮冰上抓捕海豹作为食物。但由于全球变暖，浮冰融化，在海上猎食也越来越困难，北极熊的捕猎场所也不得不转移到陆地上。

　　Polarbears usually subsist on seals, which they hunt from a platform of seaice. But the melting of sea ice as a result of rising globaltemperatures has made it more difficult for polar bears to hunt sealsat sea, confining the bears to land。

　　有更多的北极熊淹死在海里，因为它们被迫游向更远的海域去寻找食物。

　　Drowning is also more common as bears are forced to swim further out to sea to find food。