Outside of mother’s milk our ape ancestors weren’t getting any dairy though. Maybe the last 10k, even longer, years. Not the last 100k, to say nothing of the last 10 million.
You are right it is a newer adaptation, but one that was clearly advantageous to our species. There are not many evolutionary changes that occurred independently in 3-5 different populations.
Humans evolved to proccess dairy, not once, not twice, but 3 times. Some studies even suggest up to 5 times.
Seems like it was definitely advantageous to consume dairy
Outside of mother’s milk our ape ancestors weren’t getting any dairy though. Maybe the last 10k, even longer, years. Not the last 100k, to say nothing of the last 10 million.
You are right it is a newer adaptation, but one that was clearly advantageous to our species. There are not many evolutionary changes that occurred independently in 3-5 different populations.
https://en.wikipedia.org/wiki/Lactase_persistence
https://pmc.ncbi.nlm.nih.gov/articles/PMC3048992/#%3A~%3Atext=Lactase+is+the+enzyme+responsible%2Ctrait+known+as+lactase+persistence.