The Bering Land Bridge nearly wrecked the Earth's climate

The land bridge that once connected North America and Asia rose from the seas 80,000 years ago. And at the same time, North America's climate began experiencing violent climate swings, with average temperatures shifting as much as ten degrees every decade. » 4/09/12 4:40pm 4/09/12 4:40pm

How centuries of flooding turned the ancient Chinese into seafarers

About 9,000 years ago, the Fuzhou Basin in southeastern China fell victim to rising sea levels, pushing underwater the marshy lands needed for rice farming. The marooned people there became seafarers, which eventually led to the colonization of Taiwan. » 4/03/11 1:00pm 4/03/11 1:00pm

How many groups reached the Americas before Christopher Columbus?

In 1492, Christopher Columbus landed in what is now the Bahamas, changing the world forever. But was he first non-indigenous person to reach the Americas? Vikings got there before him, and possibly Polynesians too...and those are just the sane theories. » 3/30/11 9:22am 3/30/11 9:22am