Keratin can be very colorful, as we see in birds. We'd expect dinosaurs to be very colorful because they basically invented the characteristics we see in birds.
角蛋白可以是非常丰富多彩的，正如我们在鸟类中看到的。我们希望恐龙的颜色非常鲜艳，因为它们基本上创造了我们在鸟类身上看到的特征。
标签
Dinosaurs
Birds