A New Theory Proposes That Humans Tamed Themselves

Half a century and thousands of fossil finds later, we have a far more complete—and also more puzzling—view of the human past. For example, traces of little “Hobbits” found in Indonesia in 2003 show that they walked upright and made tools; less than four feet tall, with brains about a third the size of ours, they may have persisted until modern humans arrived in the area some 50,000 years ago. DNA from tiny fragments of bone—for instance, the tip of a pinkie many thousands of years old—has brought to light a whole new humanlike species that once interbred with us, as Neanderthals did.

Source: www.theatlantic.com