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Bats, Whales, and Bio-Sonar: New Findings About Whales’ Foraging Behavior Reveal Surprising Evolutionary Convergence

By Acoustical Society of America (ASA) on May 8, 2012   Science/Education  

Though they evolved separately over millions of years in different worlds of darkness, bats and toothed whales use surprisingly similar acoustic behavior to locate, track, and capture prey using echolocation, the biological equivalent of sonar.

Built-in Ear Plugs: Whales May Turn Down Their Hearing Sensitivity When Warned of an Impending Loud Noise

By Acoustical Society of America (ASA) on May 8, 2012   At Sea  

Toothed whales navigate through sometimes dark and murky waters by emitting clicks and then interpreting the pattern of sound that bounces back. The animals’ hearing can pick up faint echoes, but that sensitivity can be a liability around loud noises.

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