Dolphin Speak

Under the swelling blue sea is a whole world of sound that spans many miles, signaling some smiling creature's escapades with one thing or another. This special serenade is a tongue of infinite complexity, used to express the need to eat, escape, or find a fancy lover floating off somewhere in the distant sandy shore. Dolphins are capable of making a broad range of sounds using nasal airsacs located just below the blowhole. Roughly three categories of sounds can be identified: frequency modulated whistles, burst-pulsed sounds and clicks. Dolphins communicate with their whistles and burst-pulsed sounds, though the nature and extent of that ability is not known. At least some dolphin species can identify themselves using a signature whistle. The clicks are directional and are for echolocation, often occurring in a short series called a click train. The click rate increases when approaching an object of interest. Dolphin echolocation clicks are amongst the loudest sounds made by marine animals. This sound uses the following file from Freesound: http://www.freesound.org/samplesViewSingle.php?id=52099