They are the top predator in many ecosystems in which they occur.
在所处的多数生态系中，它们都是顶级猎食者。
If a top predator disappears, change can shoot through an ecosystem.
如果最高级捕食者消失了，那么生态系统马上会改变。
Paradoxically, the intrusion of another top predator could in someways make life easier for the white bears, says Rockwell.
但洛克韦尔也表示，颇有些自相矛盾的是，另一种大型捕食动物的入侵却让北极熊的生存更为容易了。
But a paper in Biology Letters suggests that even a relatively small protected area can have a positive impact on a top predator - in this case, the African penguin, an endangered species.
但生物学通讯一篇论文提出，哪怕一个相对较小的保护区也可对顶端捕食者产生积极作用，在此指的是濒临灭绝的非洲企鹅。
The terror bird was the top predator in its ancestral home.
恐鸟是其远古家园中的顶级捕食者。
We now know that its long legs made it a top predator, a mammal that could run down its prey at long distances, particularly, bison.
我们现在知道它的长腿使之成为顶级掠食者，这种哺乳动物能够长距离追逐猎物，特别是野牛。
We now know that its long legs made it a top predator, a mammal that could run down its prey at long distances, particularly, bison.
我们现在知道它的长腿使之成为顶级掠食者，这种哺乳动物能够长距离追逐猎物，特别是野牛。
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