A human can normally only hear in the 20-20,000Hz range. The sounds the chameleons make are lower then that. The recording was actually speed up so you could hear it. No different then old tape players. You could hit play and fast foward at the exact same time and it would sound like Alvin & the chipmunks.
Yeah Jamie I saw that right off the bat. I kind of thought it was funny reading the rest of the post.