Ants and spiders are able to defy gravity -- but how do they do it? We'll learn about how awesome their feet are and how one predator takes advantage of these powers. Plus: A very challenging mystery sound and a Moment of Um that answers the question, "How do bananas ripen other fruit?"

Today’s episode is sponsored by:

• KiwiCo (kiwico.com/brainson)
• Bona (bona.com/brainson)
• Panama City Beach (VisitPanamaCityBeach.com).

You can support Brains On at brainson.org/donate.