A review by alijc
Paleofantasy: What Evolution Really Tells Us about Sex, Diet, and How We Live by Marlene Zuk

3.0

It was written as a rebuttal to the 'caveman' fad - the belief that it's best for us to eat and exercise as our stone-age ancestors did, before the advent of agriculture. The main problem with this, well, other than the fact that we don't really know what are ancestors ate, and even if we did, those foods might no longer be available, is that our evolution didn't come to a head in the Paleolithic era and then halt. We have been evolving since we were single-cell organisms, and have continued to do so in recent times. (For 'recent' = '~100 generations')

As examples of recent evolution, she cited the mutations that allow some people to digest milk in adulthood, and that (might have) protected (some) Europeans from the Black Death and that now help to protect their descendants from AIDS. (Except that now they think it's wasn't bubonic plague that concentrated the mutation. Smallpox maybe.)