QUOTE(JayleeD @ Jun 20 2005, 09:30 AM)
Did anyone watch this on Saturday?
I watched most of it, but lost interest in some of it. There was a researcher, I believe she was from Cornell University (I could be wrong there) who talked about infrasound and elephants. She talked about how the atmosphere around the elephant area seemed to be different when she would get near the area, so she recorded the sounds. I wish I understood more about this, and how we could hear the low sounds on the recording, but can't hear it when the elephants make the sound. Guess it's converted some way on tape that I don't know anything about.
She did say that in the wild, elephants can communicate this way for a range of up to 8 miles. Don't know how they know that, but that's what was said.

Jaylee,
This is a real and true thing. I can tell you from working with elephants that the infrasound is actually more felt than heard...and also the military has been working with infrasound weapons for quite some time. The woman I think you may have seen was Katy Payne? Because if it is her...she came and worked with our elephants for some time at PAWS...she told me a lot of stuff I did not know...one of the things that I have since witnessed over and over now is the elephants will hold stock still...with one foot up in the air and their ears out and they will move their head from side to side. This is called "Scanning" and they are actually sensing sound which they process through the vast chambers of spongy bone in their heads. They can in fact tell how far away another herd is and this behavior also answers many old mysteries about elephant society, particularly the mystery attending the ability of males to find females for breeding, and the ability of separated family groups to coordinate their patterns of movement for weeks at a time without losing communication or converging on the same scarce resources.
When you are near and elephant and they do this sound...it feels like a vibration going through your body...the sound is very very low...so it is very hard for the human ear to detect...but a lot of the sounds that elephants make were used in Jurassic Park...the very low rumbling sounds...
But anyway....I have seen the elephants many times adopt this behavior when trying to determine what they are hearing...here is a photo of one of our elephants doing it....