Roaches, which have British Cockroach, is a participant of the order Blattaria and had five family members. Allegedly there are 4,000 varieties of cockroach.
Cockroaches are known to the animals that nasty, dirty and filthy. Almost everyone will feel uncomfortable and disgusted if body in this eight-legged beast. Habits of this animal is living and eating mounds of garbage or other dirty places.
Dinosaurs are not the only living things that drew early attention of scientists. Lice which incidentally was also a lot of microscopic sized invite question among paleontologists.