Bioacoustics is a relatively new field...only about 40 years old. So
the answers are not always clear. Current thinking is that each
organism emits its own unique signature, whether it's an actual voice,
the result of a particular interactive behavior with other organisms,
or a detectable result of its metabolism.
Bernie
On May 6, 2009, at 12:46 PM, Robb Nichols wrote:
>
>
> I'm getting more philosophical here. But does every organism own that
> acoustic signature? Does the sound originate with them, or can they
> only stimulate sound events in other objects or change the effect of
> sound transmission from another source?
>
> Bernie Krause wrote:
> >
> >
> > Every living organism, however tiny or large, is thought to emit an
> > acoustic signature. Often the problem is to isolate and record it.
> For
> > instance, the highest and lowest freq critters are the cetaceans
> > ranging anywhere from around 3Hz to 356kHz. Smallest, so far, are
> > viruses. I'm happy to send a copy of the article if you'll contact
> me
> > off-list.
> >
>
>
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