Open the Youtube video Knewz.com noted that pheomelanin was a yellowish-red pigment that produced ginger-colored hair in humans, but it did not mean that the fossilized frogs were the same color.

Red is the rarest hair color, but to understand why that’s the case, you need a basic grasp of the science. There’s a lot more to it than the simple traits we learned about in high school biology.