依家大群動物因為 響佢哋嘅食物上面排便排尿 於是佢哋需要遷徙 就係咁樣遷徙 避免咗因過度放牧 、 動物食曬啲植物 有秩序嘅週期遷徙 可以確保土壤有足夠植被 就好似見到依群動物走過嘅地方一樣
Nowadays, large groups of animals defecate and urinate on top of their food, so they need to migrate in this way, avoiding the orderly cycle of migration of plants that are overgrazed and eaten by animals, and can ensure that the soil has enough vegetation, just like seeing the herd of animals walking