The ability to "see" using your ears is a great example of the brain's plasticity—and could serve as great conversation-starter for students studying sensation. The following National Geographic video introduces Daniel Kish, President of World Access for the Blind, and describes how humans can learn to do what bats do naturally. 

Journalist, Michael Finkel, wrote a great feature on Daniel Kish for Men's Journal. To find out more about his organization and hear from blind children who have been taught this skill, be sure to watch his TED talk.

in perception