And it wasn't just plants they domesticated. 不仅驯化了植物
They learned how to produce more food 他们学会了如何生产更多食物
and sowed their seeds where they were best able to grow. 并将种子播撒在最适合生长的地方
All they need is a little encouragement. 只需稍加鼓动
Only then do they close in behind the herd. 这时他们才从背后接近野牛群
until they were exactly where they wanted them. 直到它们落入埋伏
The first they see is a wall of dust. 它们首先看到一道尘土墙