985K views · 3K reactions | Bats have a brilliant way to find prey in the dark: echolocation. But to many of the moths they eat, that natural sonar is as loud as a jet engine. So some bats have hit on a sneakier, scrappier way to hunt. | Deep Look • PBS | Facebook

Dolphins possess the remarkable ability to echolocate, allowing them to “see” underwater without their eyes. During this interactive training exercise, our dolphin uses echolocation to discern specific shapes, by playing a matching game. It’s entirely his choice to participate; if he does, he’ll wear soft eye covers and use echolocation to find and match the designated shape At any point, he has the freedom to remove the eye covers simply by opening his mouth. This cognitive exercise is designed