Millions have crossed the dangerous, high-security border between Mexico and the U.S. But we rarely hear about the actual, visceral experience of crossing. What do migrants bring? What do they eat and drink?
Archaeologists have hard evidence that humans lived in North America much earlier than previously thought, and a Chicago researcher played a key role in nailing down the dates.The earliest North Americans were long thought to be the Clovis people, who lived about 12,000-13,000 years ago.