在非洲草原上,有一种不起眼的动物叫吸血蝙蝠。它的身体极小,却是野马的天敌。这种蝙蝠攻击野马时用锋利的牙齿刺破马腿并牢固地依附其上,无论野马怎么蹦跳、狂奔,都无法驱逐这种蝙蝠,最终无可奈何地死去。动物学家在分析这一现象时,一致认为吸血蝙蝠所吸的血微不足道,远不会让 In the African steppe, there is a humble animal called a vampire bat. Its body is very small, but it is a natural enemy horse. Such bats attack the wild horses with sharp teeth piercing their legs and firmly attached to them, no matter how wild horses bounce, bolted, can not expel such bats, eventually helpless to die. Zoologists in the analysis of this phenomenon, agreed that the blood sucking bats insignificant blood, far from allowing