View full lesson: http://ed.ted.com/lessons/how-whales-breathe-communicate-and-fart-with-their-faces-joy-reidenberg
Comparative anatomist Joy Reidenberg studies the body structure of many different animals in the hope of adapting their unique qualities for human applications. Her favorite? Whales. In this TEDYouth Talk, Reidenberg explains how these majestic, awe-inspiring mammals "fart with their face" (a process more formally known as echolocation) to send their unique sounds through the water.
Talk by Joy Reidenberg.