People travelled by boat to North America some 30,000 years ago, at a time when giant animals still roamed the continent and long before it was thought the earliest arrivals had made the crossing| www.ox.ac.uk
Humans settled in the Americas much earlier than previously thought, according to new finds from Mexico.| BBC News
Footprints preserved in mud in New Mexico were made by humans thousands of years before any people were thought to be in the Americas| Berkeley News