Ep. 43: Welcome to the wasp hotel

Walking through an oak woodland, you might encounter trees with strange fruit. Some are small, fuzzy, or red "Hershey Kiss" shapes while others look like large, papery brown spheres. These aren't fruits. Dr. Matt Buffington of the U.S. Agricultural Research Service - formerly at UCR - joins us to explain these strange structures that act like hotels with room service for tiny wasps.