Research on ancient footprints has previously challenged what's known about when people arrived in North America, and a new discovery could shed more light on the story.

Scientists have found 88 fossilized prints belonging to adults and children, likely dating back 12,000 years, in shallow riverbeds on the US Air Force Utah Test and Training Range. This is only the second set of human tracks from the Ice Age to be identified in what is now the United States.

Recommended for you

(0) comments

Welcome to the discussion.

Please log in, or sign up for a new, free account to read or post comments.

Keep it Clean. Please avoid obscene, vulgar, lewd, racist or sexually-oriented language.
PLEASE TURN OFF YOUR CAPS LOCK.
Don't Threaten. Threats of harming another person will not be tolerated.
Be Truthful. Don't knowingly lie about anyone or anything.
Be Nice. No racism, sexism or any sort of -ism that is degrading to another person.
Be Proactive. Use the 'Report' link on each comment to let us know of abusive posts.
Share with Us. We'd love to hear eyewitness accounts, the history behind an article.