Oldest human DNA reveals lost branch of the human family tree - CNN

1. Oldest human DNA reveals lost branch of the human family tree  CNN
2. DNA reveals the face of the most recent human to interbreed with Neanderthals  Earth.com
3. Oldest Human Genomes Reveal How a Small Group Burst Out of Africa  The New York Times
4. Neanderthals and Humans Mated More Recently Than Previously Thought  The Wall Street Journal