The balance of nature
It is very important for us to keep the balance of nature, and nature often teaches its lessons. Here are two examples: Eagles eat chickens. They felt mice as well. The farmers want to kill many eagles to protect their chickens, but to their surprise, more and more mice appeared. A lot of grains were eaten. In one place in the America, the deer eat a kind of wild rose, while the mountain lions eat the deer. People killed many mountain lions to protect the deer. As a result, the deer ate up all the wild roses and began to eat the green leaves and young trees. Now you can see how important is to keep the balance of nature. If we don't keep the balance of nature,we will suffer from it. |