Their are so many insect in the world but some of them are so much scary & poisoners. Cockroach are mainly found in kitchen, Home, Office & Store room area. They are very harmful to our kids & other family members. They can spread many disease like food poisoning. https://cockroachlife.com/german-cockroach-care-life-cycle-facts-eggs-reproduction/ Their are so many type of cockroaches found across all over the world but some of them like Madagascar Cockroach found commonly everywhere.

Their are other insects are also in the world those are more dangerous then cockroach like spider. Among them black widow type spider is the most poison in all of them. https://blackwidowspider.net/ Black spider is mostly found in America, UK & Canada. Black Widow Spider Bite is very much harmful to anyone. It may cause of death if the treatment is not done on time.