The answer to 'what is cockroach' is that cockroaches are a type of insect that are known for their ability to survive in a wide range of environments. Cockroaches are typically oval-shaped, have six legs, and can range in color from brown to black. They are nocturnal creatures that are often found in homes, restaurants, and other buildings, where they can be a nuisance and a potential health hazard.
Cockroaches are known for their ability to multiply quickly, with a single female cockroach capable of producing hundreds of offspring in a short period of time. They are also known for their ability to spread diseases, as they can carry bacteria, viruses, and parasites that can be harmful to humans.