Cockroach

The oldest winged insect on the face of the earth (between 354–295 million years ago) , was definitely resistant to any and all methods of extermination, from tomato slices with borax to flour and sugar, and with its one thousand six hundred three varieties had raised the most ancient, tenacious, and pitiless persecution that mankind had unleashed against any living thing since the beginnings, including man himself, to such extent that just as an instinct for reproduction was attributed to the mankind , so there must have been another one more definite and pressing, which was the instinct to kill cockroaches, and if the latter had succeeded in escaping human ferocity it was because they had taken refuge in the shadows, where they become invulnerable because of man's congenital fear of the dark ,but on the other hand they became susceptible to the glow of noon , so the only effective method for killing cockroaches was the glare of sun.