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Re: Did Feathers Evolve for Dispaly? We Still Don't Know!
On Mon, Feb 1st, 2010 at 9:28 AM, Nick Pharris <email@example.com> wrote:
> It's also worth bearing in mind that the so-called "white" areas on
> the tail of *Sinosauropteryx* are really just areas that lack
> There could still have been other pigments present (like
> carotenoids, which produce hues in the yellow/orange/red range) that
> would not have been evident in the present study.
That's an excellant point. I've heard that zoos need to mix certain natural
dyes into their flamingo
food, otherwise the birds turn white. Apparently their pink colouration is due
to pigments they
injest from the crustaceans they filter out of the water.
There was a study many years ago that showed that dung-eating amongst certain
in Africa supplies them with the carotenoids they require to keep the skin
around their faces bright
GIS Specialist Australian Dinosaurs
Melbourne, Australia http://home.alphalink.com.au/~dannj