Journey through the world of sound-from the deepest rumbles to the highest squeaks. This episode reveals sounds beyond the range of our human hearing, shows what it actually looks like to 'see' with sound and how alligators create such low infrasonic pulses that they physically make the water dance.

Originally released by BBC Worldwide Ltd, 2014. Streaming video file encoded with permission for digital streaming by Infobase on May 15, 2015.

Introduction: Animal Super Senses: Sound --(2:49) -- African Elephant -- (8:25) -- American Alligator -- (5:13) -- Golden Mole -- (7:17) -- Coqui Frog -- (7:05) -- Barn Owl -- (5:06) -- Ultrasonic Hearing -- (2:21) -- Bats -- (7:09) -- Credits: Animal Super Senses: Sound -- (0:41).