体重仅一毫克,护身外壳也仅有薄薄的一层,果蝇时常身处被拍扁的危险之中。但是腹部黑黑的果蝇,尽管缺乏健壮的身子,却以速度弥补了自身的不足。一项新的研究透露,苍蝇的逃脱动作不只是简单的反射行为。研究者们发现苍蝇会预测危险逼近的方向,并在瞬间做出反应,使之更好地做出向 With only one milligram of body weight, there is only a thin layer of body protection. Drosophila is often at risk of being squashed. However, the dark-skinned fruit fly, despite its lack of a robust body, made up for its lack of speed. A new study reveals that flies’ escapes are not simply reflections. Researchers have found that flies can predict the direction of the danger and respond in an instant to make it better