4 ms·

But they have. Here are some mutations from the last 10K years: - white skincolor - lactose tolerance http://www.sciencemag.org/news/2015/04/how-europeans-ev

• masklinn 8y ago
  - high-altitude adaptations of Andean populations (independent Ethiopian and Tibetan adaptations are older than your 10KY limit) - possibly HgbS? Couldn't find much numbers related to its evolutionary history. And it's just one of the independent evolutions for malaria resistance: Thalassemias, Duffy blood groups and a few others seem to provide some level of malaria resistance to malaria - CCR5-Δ32, while it provides resistance to HIV it's too old to have been selected for it but it's too young to have not been selected for as well (95% confidence that it's 900 to 5000 years old, likely circa 2250, a non-selected random survival would be ~100kY given how widespread it is)
• jug 8y ago
  And narrowing jaws make us ever more likely to miss some wisdom teeth. They part always struggle to emerge from the gums from narrow jaws due to our large brains, and are also less necessary today with softer foods. Softer foods also weaken our jaw muscles a bit, so they are more likely to remain under the gums and cause infections. All in all, they are probably more or less going away in the long run.