| http://www.w3.org/ns/prov#value | - The more brilliant yellows come from the carotenoid pigments in their food, but apparently there is a cost to this brilliance--high (but natural) levels of the pigments have a bad effect on goldfinch livers and muscles.Then he summarized some interesting posters, including one about lead levels in eagles and ravens in Yellowstone National Park increasing dramatically right after hunting season ope
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