Carl Zimmer writes about it in The New York Times.
The researchers removed 29 chips, each the size of a poppy seed, from across the dinosaur’s body. Mr. Vinther put the chips under a microscope and discovered melanosomes.
Dr. Shawkey can accurately predict the color of feathers from melanosomes alone. The scientists used the same method to decipher Anchiornis’s color pattern.Anchiornis had a crown of reddish feathers surrounding dark gray ones, and its face was mottled with reddish and black spots. Its body was dark gray, but its limb feathers were white with black tips.