Some of those small mammals help to sustain such big birds as goldeneagles.
其中的一些小型哺乳动物有助于维持金鹰等大型鸟类的生存。
2
Wild pigs attracted goldeneagles from the mainland, and those flying predators crashed the fox population.
岛上的野猪引来了大陆的金雕，这些飞行的捕食者们导致岛屿灰狐的数量大幅下降。
3
A decade ago, this island's ecosystem was in chaos. Wild pigs attracted goldeneagles from the mainland, and those flying predators crashed the fox population.