鲶鱼的地动仪 日本很多地方饲养鲶鱼以预测地震。科学家研究发现,鲶鱼对轻微震动十分敏感,地震前所引起的微弱电流变化,鲶鱼的感受器都能感觉到。螳螂的瞄准仪 螳螂把两只复眼得到的信号传到大脑,头部便瞄准目标。大脑根据这两种信号的差别,指挥双臂对准目标猛然袭击,准 Seychelles of catfish Catfish are reared in many parts of Japan to predict earthquakes. Scientists have found that catfish are very sensitive to slight vibrations, and weak current changes caused by earthquakes can be felt by catfish receptors. Mantis sight Mantis to the two compound eyes get the signal to the brain, the head then aimed at the target. According to the difference between the two signals in the brain, the command of both arms aimed at the target suddenly attacked