A look inside the vast world of roaches

Did you know that the pesky cockroaches we sometimes find in kitchens, sewers and basements make up less than 1 percent of all cockroach species? Researchers estimate there are as many as 20,000 roach species on the planet and less than 5,000 have been cataloged. Up next, our partner Science Friday goes into the lab with roach researchers at Rutgers University in New Jersey.