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If every car constantly emits a high frequency tone beyond the range of the human ear but audible to dogs, I believe canine road accidents would drop dramatically. Perhaps the frequency could be varied to stop other animals running across busy roads to their deaths.
(?) Electronic Deer Whistles
http://deer-whistles.com/deer-whistles/
Allegedly work to keep deer out of your car's way . . . Might work for dogs, too. [bristolz, Mar 28 2002, last modified Oct 04 2004]
(?) Conclusions on Deer Whistles
http://cru.cahe.wsu.../eb1677/eb1677.html
He's talking about the non-electronic kind (I think - based on the illustration). According to this report, deer whistles also work on elk, moose and dogs. Or should, except they don't appear to work at all. [waugsqueke, Mar 28 2002]
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Annotation:
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Baked. I've seen these advertised in hunting magazines all the time, supposedly to repel deer in the roadway. |
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But also, I wonder if this wouldn't drive pets to run away, especially if your house is by a busy street. |
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To the animal in question, the busy street would quite literally be a "wall of sound" if this idea was widespread. This might prevent escape. How dogs are to travel in cars is a tricky one though. |
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There is also an issue as to how they would be able to grip the steering wheel. |
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