Early modern humans in Europe had a rocky road
Prehistoric human pioneers in Europe came in many waves, and many groups didn't thrive
Dr. Reich and his team studied DNA recovered from the remains of 51 Europeans, who lived between 10,000 and 40,000 years ago in different places across Europe. By studying how they are genetically related, the researchers were able to determine which generations in which places prospered and which failed.
The story that emerged suggests the first colonists actually died out. And over time, different groups moved from East to West and back again, displacing established populations multiple times.