Hot redheads.part 2
No gemsie in redhead thread????
Why redhead are so attractive?
Is it because it's rare?
In ancient Rome redhead slaves were very expensive
The human eye has greater and greater color sensitivity towards the red end of the spectrum. We perceive a much larger difference between red and green than we do between green and blue, even though the difference in wavelengths is the same. You'll notice that you can very easily tell the difference between different shades of red and orange, whereas shades of green or blue tend to fade into each other. This is presumably so that we can immediately recognize blood and avoid it if necessary.