Originally published on Wed January 29, 2014 5:03 pm
Meteorologists are used to people faulting their weather predictions. But when Georgia's Gov. Nathan Deal called Tuesday's crippling winter storm "unexpected," he drew responses from several forecasters. One answer came from the head of the American Meteorological Society, who also lives in Georgia.
Neanderthals died out long ago, but their genes live on in us. Scientists studying human chromosomes say they've discovered a surprising amount of Neanderthal DNA in our genes. And these aren't just random fragments; they help shape what we look like today, including our hair and skin.
These genes crept into our DNA tens of thousands of years ago, during occasional sexual encounters between Neanderthals and human ancestors who lived in Europe at the time. They show up today in their descendants, people of European and Asian descent.