News tagged with dolphins

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Dolphins use double sonar

Dolphins and porpoises use echolocation for hunting and orientation. By sending out high-frequency sound, known as ultrasound, dolphins can use the echoes to determine what type of object the sound beam has ...

Jun 07, 2011 5 / 5 (3) 11

Against the tide: Currents keep dolphins apart

Conservationists from the Wildlife Conservation Society, the American Museum of Natural History, and other conservation and research groups have discovered that groups of dolphins in the western Indian Ocean ...

Mar 24, 2011 not rated yet 0