Parasites: they're everywhere. Feeding, living and thriving off of people and pets....and often, we don't even know it. Join host Anne Glausser Monday for a Science Café edition of the Sound of Ideas. You won't believe where parasites lurk, how they can harm and help the body, and how they helped shape human evolution. We'll have a biologist from Case Western and a veterinarian from the Cleveland Zoo in studio to answer your critter questions.

Emmitt Jolly, Assistant Biology Professor, Case Western Reserve University

Mike Selig, Veterinarian, Cleveland Metroparks Zoo