In one of my more recent questions, one Xandar The Zenon commented that a mutation that creates the gene for red or orange pigmentation on the human skin is more likely than green, blue or purple.
But wait. You might think, don't we already have red-skinned humans? Actually, the Native Americans aren't purely red, just diluted into a dominant shade of brown.
This question is for a mutation regarding REAL red:
- American Rose
To name a few shades.
But looking into the origin of ethnic diversity is not straightforward. The Mongoloid body plan is the result of an individual mutation from 35,000 years ago. The Caucasians, by contrast, started to become white as sheets 7,000 years ago as the result of agriculture cultivating crop foods low in vitamin D. Which side would make the red skin gene a possibility?