Blind as a bat? Hardly. To detect prey and other objects, some bats use a sight-free radar system called echolocation. But all bats can see. See?

• 像蝙蝠一样看不见吗?才不是呢。为了探测猎物和其它物体的方位,有些蝙蝠用一种叫作回声定位的雷达系统,无需视力,但所有蝙蝠都看得见。你明白了吗?