I know. My post was intended for someone else on this thread whom I cannot recall. So I hoped they would read whilst lurking.
ah.
an aside: a thought just ocurred to me - highly invaginated and layered surfaces break up an outline and delay pattern recognition far more effectively than do flat and smooth surfaces of the same hue value pattern.
couldn't see my dog in the low light outside, and stumbled over her, ok?
That being given, has any thought been given to the camouflage value of such surfaces being one of the pricipal factors favoring the initial development of feathers from scales? I've seen a lot of speculation about thermal insulation, but I don't recall seeing anything on camouflage.
Thought I'd pass it along.