Re: [cm] Re: frogs => back to mollusks

> Frogs and some other animals create a sound mass
deliberately,
> because it helps them to know when an intruder has entered
> their
> environment. As long as the sound keeps reflecting back to
> them
> unchanged, they know they're alone. But as soon as
something,
> a human for example, enters their area, it changes the
> reflection
> of the sound and they know something is there, and they stop
> making the noise, in order to protect themselves.

Wow thanks Monz! I wondered how they could tell I was
around no matter how silently I walked.

BUT!! I will say that if I stand still they start
croaking again so if your theory is basically correct
it would be the CHANGE in the ERTF (environment related
transfer function) (the dERTF) that they react too.

I am looking for an article I have I want to show y'all
on frog mating habits and how the frog mating protocol
is intimately related to their auditory neurobiology.
That's where I want to head with the mollusks mating
habits thing because it is all very relevant. Mating is
THE MOST IMPORTANT part of sound perception in
animals!! Self protection, in terms of the number of
neurons involved, and their complexity, is in there,
but way down on the list.

- Jeff

> From: X. J. Scott <xjscott@...>
> To: <crazy_music@yahoogroups.com>
> Sent: Tuesday, August 07, 2001 10:01 AM
> Subject: Re: [cm] Re: frogs => back to mollusks
>
>
>
> > Frogs and some other animals create a sound mass
> > deliberately, because it helps them to know when
> > an intruder has entered their environment. As long
> > as the sound keeps reflecting back to them
> > unchanged, they know they're alone. But as soon
> > as something, a human for example, enters their
> > area, it changes the reflection of the sound and
> > they know something is there, and they stop
> > making the noise, in order to protect themselves.
>
> Wow thanks Monz! I wondered how they could tell I was
> around no matter how silently I walked.
>
> BUT!! I will say that if I stand still they start
> croaking again so if your theory is basically correct
> it would be the CHANGE in the ERTF (environment related
> transfer function) (the dERTF) that they react too.

Perhaps I didn't make it clear enough, but that's
exactly right, Jeff. It's the *change* in the reflected
sound that they respond to. They create the sound mass
so that there is a certain level of background noise
and if it changes, then they know that something has
come near.

Be careful calling it "Monz's theory"... as I said,
I got it from someone else, and have never read about
it anywhere.

love / peace / harmony ...

-monz
http://www.monz.org
"All roads lead to n^0"

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