I couldn’t sleep last night because I was staring at my fingers and wondering what evolutionary purpose fingerprints serve, not kidding, stared at my own fingers for hours thinking in circles about this.
Does anyone know why we have fingerprints? Perhaps my fellow nerdfighters can help?
p.s. No I wasn’t high….I just think “creatively” and perhaps oddly sometimes, but I really do want to know…fingerprints…weird/why?
Weirdly enough, I was just thinking about this yesterday actually. A little research shows that fingerprints:
Help us grip by providing a textured surface and higher surface area for gripping
Provide wrinkles that channel water away from a gripping surface when you grab something
Increases our ability to sense textures by providing ridges (some of which will always be perpendicular to the texture because of the swirling pattern.)
Research is still being done, but some people do not have fingerprints, and they indeed can confirm that it’s difficult to grip some stuff, especially wet stuff.
I thought they were just created when we feel about in the womb and stuff?
That’s why everyone, even twins, has different ones?
This would mean that they have no hereditary significance and therefore aren’t really an adaptation passed on by natural selection…
And it’s just plain luck that they actually have specific benefits…
(Ps. all of the above could be completely wrong, please let me know if it is.)