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Moths: Simple Ears, Complex Hearing

December 21st 2006 07:37
Moths, prey animals that they are, listen for the sound of bats' echolocating signals. Their ears are among the simplest known to science, yet their response to the ultrasonic bat echoes are anything but simple. The moth's ear listens at the low end of bat frequencies--until a bat approaches. At that point, the moth's ear changes to listen for higher frequencies, the frequencies bats use when they close in on prey.

Windmill, et al., offer a mathematical model for predicting the change in a moth's ear in this issue of Current Biology.


Source: Current Biology, 19 Dec 2006
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Comment by Deorre

December 21st 2006 12:52


Stress Alive
Man Lessons
That's pretty interesting. What do the moths do with that information. Avoid the bat? And, are they able to?

Comment by Adele

December 23rd 2006 04:48


Lost Fanatic
Day Break TV
The moths use the information to avoid the bat as best they can. I guess they know they've been found when they hear the higher pitches.

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