These cubs will stay with their mother for nearly two years... 小豹会与母亲待在一起将近两年
With their freezing temperatures and thin air, 由于寒冷的气温和稀薄的空气
Battles between the mammals have always driven their evolution, 哺乳动物之间的战斗 始终推动着它们的进化
...adaptations that protect them and their young 这些适应性可以保护它们及幼崽
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
and follow their herd in search of fresh growth. 并跟随兽群寻找新长出的草
Their young are born fully formed... 幼崽一出生就完全成型
But just as their ancestors were beginning to make progress, 但正当它们的祖先开始取得进展时
The monkeys have discovered their very own insect repellent. 猴子们发现了它们自己的驱虫剂