Coby Schal, an entomologist at North Carolina State University, was featured on NPR's Science Friday in this video on how and why cockroaches clean themselves. To clean its antenna, a cockroach will grab ahold of it with its front leg, bring the antenna to its mouth, and run the antenna from base to tip through its mandibles like a piece of floss.

Dr. Schal was also the subject of an article in The Scientist called "Tough Bugger." 

Watch the video below.