Metabolic underpinning of animal communication?

["Aaron Ximm" aaron_gmail]

Interesting hypothesis!

 http://www.sciencedaily.com/releases/2010/01/100105195246.htm

FTA: "Our results indicate that, for all species, basic features of acoustic
communication are primarily controlled by individual metabolism, which in
turn varies predictably with body size and temperature. So, when the calls
are adjusted for an animal's size and temperature, they even sound alike."

Not sure how to evaluate it, it would seem that there must be other
contextual and environmental factors...

aaron

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