Revolutions are rarely simple, and that holds true for the so-called Neolithic Revolution in Europe, too, according to two papers published in Science this week. On page 257, the largest ancient DNA study on this question shows that farming penetrated Europe in a series of fits and starts, leaving few modern Europeans with the genetic signature of the first farmers. Another paper, published online, focuses on a single cave and suggests that farmers and foragers lived side by side for centuries.

via Farming’s Tangled European Roots.