Do cockroaches have hearts?

Our hearts are strong muscles that pump blood all through our bodies. But do hearts look the same in different animals? What about a tiger, or a lizard, or…a cockroach? Do cockroaches even have hearts? ? We asked urban bug expert Dr. Jody Green to help us find the answer. Got a question that’s been bugging you? Send it to us at BrainsOn.org/contact, and we’ll fly the answer your way. See omnystudio.com/listener for privacy information.