当北极多年冰开始融化的时候，北极熊离开苔原和冒险到冻结的海洋上寻找海豹捕食。
As Arctic ice begins to melt, polar bears leave the tundra and venture onto the frozen ocean in search of seals to prey on.
婴儿动物图片。一只格陵兰海豹婴儿休息在北极多年冰。它的妈妈能够从好几百的其它婴儿海豹经由独自的气味辨认区别她的婴儿。
A baby harp seal rests on the Arctic ice. Its mother can distinguish it from hundreds of others by scent alone.
应用推荐