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Re: Head-bobbing



> I wonder if this behavior is a modification of head-bobbing appropriate to
> animals that do most of their displaying in the water?

    I would imagine crocodiles would have structural problems with head 
bobbing anyway.  Thier necks don't strike me as being long or flexible 
enough to make that sort of vertical movement.  Those gracile Triassic 
proto-crocs might have been head bobbers.

LN Jeff