If there is one, perhaps he can explain why apes and monkeys have identifiable "friction ridges" on their toes, feet, fingers and palms.
In Homo sapiens, we call ridges on one's palms "palmprints": on one's fingers, those ridges are called "fingerprints".
Apes needed "friction ridges" to enhance their grip on tree limbs.
Humans have them because?
==Humans have them because?
Because God designed us that way. In addition to stamping each and every one of us as unique, the last I checked humans grip a far greater variety of objects (large and small, coarse and smooth) than do apes.
If they didn't, television writers would need another way to have their protagonists track down criminals. Granted, this is a anthropic argument, but if it's good enough for Steven Weinberg, it's good enough for me! (well, not really - actually anthropic arguments are the worst kind of pseudo-science)
Humans have them because?
But this is all speculation, and it can be turned around just as easlily:
My dog holds down his (doggy-bone) "prey" with his paws while switching to a better grip with his teeth. But his (dead and immobile) bone keeps slipping and sliding away. His maladroit incompetence is really hilarious.
Why, after 300 million years of the magic of evolution, do canines have such crappy paws?
Or, turned back, why didn't God design him more effectively?
The fact is, we don't know. We have only the thinnest shred of knowledge. The paleontologist I respect most answers questions 95% of the time with with "maybe this or maybe that, but we don't really know."
Humans don’t grasp things?
BTW, a scotch pot cleaning pad has friction strips, too. Some designer someplace...in some soap lab...noticed an obvious idea.
All physical function requires friction. It is irreplaceable in the physical universe.