History, Evolution, and The Darwin Debate

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How Bats Stay On Target

July 31st, 2011 · No Comments

How Bats Stay On Target Despite the ClutterScienceDaily (July 30, 2011) — In a paper published this week in Science, researchers at Brown University and from the Republic of Georgia have learned how bats can home in on a target, while nearly instantaneously taking account of and dismissing other objects in their midst. The trick lies in their neurons: Bats can separate the cavalcade of echoes returning from their sonar pulses by distinguishing changes in amplitude — the intensity of the sound — between different parts of each echo within 1.5 decibels, to decide whether the object is a target or just background clutter.

Tags: Evolution

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