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Sonar Dolphins

Hidden Similarity Found Between Bats And Dolphins

Posted 09.04.2013 | Green

By Charles Q. Choi, LiveScience Contributor: Bats and dolphins may live in radically different worlds, but the fact they both evolved a type of son...

US Navy Agrees To Limit Potentially Harmful Sonar Use

AP | Posted 05.25.2011 | Green

SAN FRANCISCO (AP) -- The Navy agreed in a settlement approved Tuesday to limit where it operates certain sonar systems criticized by environmentalist...