and become the world's most dangerous predator. 成为世界上最危险的捕食者
With most of the world's water locked up as ice, 世界上大部分水被冰封
sometimes in the most unexpected ways. 有时影响极为出乎意料
including the largest and most iconic of them all... 包括其中最大、最具代表性的…
the tundra-steppe became Earth's most extensive habitat. 冻原成为地球上最广阔的栖息地
The most dangerous animal the world had ever seen. 这是世界上出现过的最危险的动物
for the coldest, most precipitous nursery on Earth. 地球上最寒冷、最陡峭的养育场所
these mountains are uninhabitable for most animals. 这些山脉 对于大多数动物来说无法居住
their huge numbers the most obvious sign of this exceptional success. 它们庞大的数量 就是巨大成功的最明显的标志
One of the most violent events in our planet's history 地球历史上最剧烈的事件之一