The great Ice Age had begun...
冰河时期开始
and the relief of spring.
和春天的到来
for they can look forward to the end of winter
因为可以期待冬天的结束
the wolves will follow.
狼群都会跟随
Only then does the pack finally relent.
这时狼群才会停下脚步
But the bison can't run forever,
但野牛不可能永远奔跑
especially in the deep snow.
尤其是在深深的雪地上
Panic gives the wolves control.
恐慌使狼群获得控制权
The herd must stick together.
野牛群必须聚在一起
To split up the herd...
为了分散野牛群