Re: Need : ultra-miniature microphones

["Robb Nichols" robb_nichols]

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.
>