理查德普鲁姆：我们发现恐龙活着的时候羽毛里含有色素粒，这种色素也决定我们人类头发的颜色是黑色、红色还是棕色。
Richard Prum : We discovered the original pigment granules that had been in the feathers of the animal when it was alive , the kind of pigments that produce black hair and red hair and blond hair in humans .
色素粒