But each monitors minute changes in the water as they search for a meal. 但它们寻找食物时都密切关注着水中的微小变化
seals risk their lives every time they set out to eat. 海豹每次前去觅食都要冒着生命危险
It's here that they meet their explosive end. 带着巨大能量扑向此处
We will see how animals are adapting in extraordinary ways to survive the new challenges they face. 我们将看到面临新的挑战,动物如何以非凡的方式去适应
but here, they occupy one-tenth of that area. 可在这里 它们只占据了十分之一的面积
so they use their barbels to sense the movements of their victims. 它们依靠触须来探测猎物的动静
they have proliferated. Virtually exterminated the local fish stocks... 繁殖数量却已大大增长 几乎迫使本地鱼类灭绝