Ultrasonic frogs can tune their ears to different frequencies

Researchers have discovered that a frog that lives near noisy springs in central China can tune its ears to different sound frequencies, much like the tuner on a radio can shift from one frequency to another. It is the only known example of an animal that can actively select what frequencies it hears, the researchers say.

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<p><a href="http://www.physorg.com/news135937929.html">Ultrasonic frogs can tune their ears to different frequencies</a></p> <p>Researchers have discovered that a frog that lives near noisy springs in central China can tune its ears to different sound frequencies, much like the tuner on a radio can shift from one frequency to another. It is the only known example of an animal that can actively select what frequencies it hears, the researchers say.</p>