8. Have you ever wondered why you see moths flying mostly at night and only around F lights? It's evident that moths are attracted to light. But what do you suppose the light does to them? A moth's nervous system is extremely sensitive to light. Light causes the moth to reduce its movement. At night light hitting one side of a moth is perceived by the moth's eyes, stimulating the nervous system. This produces a reflex action that reduces wing movement on the side facing the light. When the wing on that side slows down, the uneven wing-beat turns the other side of the moth to the light. In this way the moth is continually turning near the light.