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Old 05-17-2009, 07:25 PM
Blake Blake is offline
Join Date: Mar 2001
Posts: 11,049
Originally Posted by The Devil's Grandmother View Post
I think the ability to create sound is separate from the ability to use that sound for communication. Your fish were vocalizing, but not communicating.
The fish were communicating without any shadow of a doubt. Large numbers of fish communicate vocally. You don't evolve elaborate means of producing sound if you aren't using it to communicate.