With the predators overwhelmed the survivors can achieve their purpose. 当捕食者达到饱和,存活的蝉也在完成它们的使命
that soon all the predators are full to the point of bursting 使得捕食者数量很快就暴涨
but at least, there are no land based predators here. 不过至少没有陆基的捕食者
They're warm, calm, and contain very few predators. 温暖,平静,很少有掠食者
and up here they're safer from predators. 在这里,也能免于被掠食者吃掉
Further south, other bigger predators prowl the tundra. 在北极苔原更远的南边有更大的掠食动物出没
and there are fewer predators than further south. 而且这里的掠食动物比南方少多了
Predators also have a hard time raising their young on open grassland. 掠食动物在这片空旷的草地上繁衍后代也并不轻松
it's almost impossible for predators to sneak up. 瞪羚们能够极其有效地防止自己遭到偷袭
Unlike Antarctica, the Arctic can be reached by land-based predators, 与南极不同, 陆基的掠食动物也可以到达这里