Whale sonar: Two pings are better than one

Many whale species have sonar systems that send out two pings at once, allowing them to detect underwater objects with greater accuracy than even the most sophisticated human technologies, according to a study released Wednesday.

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<p><a href="http://www.physorg.com/news155385384.html">Whale sonar: Two pings are better than one</a></p> <p>Many whale species have sonar systems that send out two pings at once, allowing them to detect underwater objects with greater accuracy than even the most sophisticated human technologies, according to a study released Wednesday.</p>