Why Do Humans Swim?

An eighteenth-century beach resort, with separated gender swimming, bathing machines, dresses and suits—including birthday suits—as beachwear and hired “dippers” might be the farthest thing from what the beach means to us today. How did these early resorts evolve into the beaches we know and love today? Guest: Robert C. Ritchie, author of "The Lure of the Beach: A Global History"

Swimming has mental, emotional, physical, and even spiritual effects on us. Yet, unlike other mammals, we have to learn how to swim.  Guest: Bonnie Tsui, author of "Why We Swim"