St. Paul, Minn. â?? Human beings are evolving at an ever faster rate, according to a new study.
A group of anthropologists and geneticists tracked this change by looking a relatively new gene for digesting milk, which varies depending on where in the world you live.
Guest John Hawks, anthropologist at the University of Wisconsin-Madison, was part of a team that analyzed DNA sequences and skeletons to determine the pace of human evolution. He writes a blog on paleoanthropology, genetics, and evolution.