意大利米兰大学的科学家最新研究表明.射水鱼能够巧妙地使用物理学原理喷射水柱,击中水面上的昆虫猎物.射水鱼分布在印度、菲律宾和澳大利亚等地,大多生活在江河中.射水鱼爱吃陆地上的昆虫,一旦有捕食对象,便偷偷游近目标,先瞄准,然后从口中喷出一股水柱,将昆虫打落水中,如图1.它能把水射到两三米高,仅用0.1 s就能捕获昆虫,它们的眼睛还可以转动,紧紧盯住猎物.射水鱼的秘密武器就藏在嘴里,它用舌头抵 The latest research by scientists at the University of Milan in Italy shows that water fishes can subtly use physics to spray water columns and hit insect prey on the surface of the water. Fish are found in rivers and lakes in places such as India, the Philippines and Australia. Eat insects on land, once predators, they sneak near the target, first aiming, and then spurt a water column from the mouth, the insects knocked on the water, as shown in Figure 1. It can shoot water two or three meters high, Insects can be captured in only 0.1 s, and their eyes can be turned and pinned to their prey. The secret weapon of a spearfish hides in the mouth,