Strange and Unique Animal Adaptations

Animals have developed amazing adaptations that allow them to survive and thrive in earth's wild landscapes. We seek the answers to some of these tantalizing questions. What exactly is the role of the strange appendages of the star-nosed mole? How do tentacled snakes lead prey into their mouths? And do eels really use electricity to control other animals? Guest: Kenneth Catania, author of "Great Adaptations: Star-Nosed Moles, Electric Eels, and Other Tales of Evolution’s Mysteries Solved"