All right, I misread it.
I thought this was related to the much touted lack of human's and guinea pig's ability to sythesize vitamin C. And therefore I assumed that Neanderthal had it and the rest of us didn't.
So if it's something Human's had all along, and we don't have any proof that human's ever lacked it. They why are we assuming that Human's EVOLVED it?
Well at least you are no longer running the wrong way, but you're 99 yards from the goal.
It is related to that. For primates not having that ability, the new protein is better.
And therefore I assumed that Neanderthal had it and the rest of us didn't.
Neanderthal was probably in the same boat, no ability to synthesize vitamin C. You certainly had your blinders in place when reading that article.
So if it's something Human's had all along, and we don't have any proof that human's ever lacked it. They why are we assuming that Human's EVOLVED it?
Hmmm? Humans still have the pseudogene remnant of their former ability to synthesize vitamin C. Hello?
The scenario runs something like this. Non-primate mammals (with some exception, like said guinea pig) had the ability to synthesize ascorbic acid, an important intermediate compound for connective tissue growth and repair. The mammalian radiation created a group of tree-dwelling, fruit-eating mammals called primates. Fruit has lots of vitamin C in it. If your population lives by eating fruit all day, you could lose the ability of synthesize vitamin C and never notice for generations and generations. That happened.
Some primate groups eventually stopped eating so much fruit. They noticed a susceptibility to a new form of malnutrition. We call it "scurvy."
Cutting vitamin C out of the loop to form osteocalcin was an advantage for the new omnivorous primates. They seemed to have hit this mutation early. At any rate, humans, orangs, neanderthals, and chimps all have the new osteocalcin.
I don't see how you can say there's no evidence. We have lots of molecular studies now. This is just another one on a large and growing pile.
You're trying to make a science out of being dumb as a post, Danny. That doesn't go anywhere good.