Cockroaches: Every Nasty Thing That You Should Know About Them

Cockroaches are the most abundant and troublesome pest in many buildings and homes. Though there are approximately 3,500 different species of cockroaches in the world, most are tropical insects. Each species of cockroach varies in appearance and habits, however, all are generally flat, oval, and tan, brown, or black. Their head is flexed downward when they are at rest and is concealed by a large shield-like plate called the pronotum.