Exposure to sulfur-rich volcanic soil may increase production of pheomelanin, a pigment that gives a reddish tint to the feathers of barn owls living on remote volcanic islands Barn owls (Tyto alba) ...
The color of some feathers on dinosaurs and early birds has been identified for the first time. The research found that the theropod dinosaur Sinosauropteryx had simple bristles -- precursors of ...
Where do birds get their red feathers from? According to a new article, the red carotenoids that give the common crossbill its red coloration are produced in the liver, not the skin, as previously ...
What color were dinosaurs? Well, at least one of them had a head-to-tail feathered mohawk in a subdued palette of chestnut and white stripes. That is what a team of Chinese and British scientists ...