Chinese insect fans
Fourth Instar
Cockroach's IQ will up to 340 in a second when they meet danger. But when most people meet cockroach, they are so frightened that their IQ will become less than 5. Is this true? I saw this on a Chinese forum.
I remember learning something in second year behaviour that cockroaches have two little sensors on their bottoms, which have tiny hairs on them, and when a puff of air causes these hairs to bend, the cockroach runs in the opposite direction, instinctively but not immediately!I think they have a quicker nerve response than humans, to react to movement so quick.