A cockroach is an insect belonging to the order Blattodea. They are known for their flat, oval bodies and long antennae. Cockroaches are typically brown or black and can be found in various environments, often in warm and humid areas. They are omnivorous, feeding on a wide range of organic materials, including food scraps and decaying matter. Cockroaches are resilient creatures, capable of surviving in harsh conditions. They can live for weeks without food and are known to withstand high levels of radiation. While often considered pests, some species play a role in the ecosystem by helping to decompose organic material.