We have reclaimed them as pasture for our livestock, 我们把沼泽变成畜牧的牧场
Some adapt to the nature of their pasture, 一些适应了他们的聚食地
This rich pasture once supported the greatest herds ever seen on our planet. 这里的大草原肥沃甘美 曾经养育着地球上最大的动物群落
Biting flies and the quest for new pasture drives the migration ever onwards. 会叮咬它们的苍蝇以及为了寻找新草场, 驱使它们不停的向前迁徙