有些动物一旦遇敌,就张牙舞爪,进行自卫。那么,静立不动的植物,是不是也有自卫的本领呢?答案是不仅有,而且很奇妙。许多植物的表面密布着茸毛和钩刺,这是它们对付“侵略者”的第一道防线。农学家发现,小麦、棉花、大豆等作物,凡是茸毛多的,虫害就少。这是因为茸毛可以阻止一些害虫产卵和啃食。 In the event of encountering an enemy, some animals clatter and defend themselves. So, is not a static plant, there are self-defense skills? The answer is not only, and very wonderful. Many plants have dense hair and barbs on their surfaces, the first line of defense against their aggressors. Agronomists found that wheat, cotton, soybeans and other crops, where there is more hairs, have fewer pests. This is because the hairs prevent some pests from spawning and eating.