Footprints found in New Mexico suggest that humans may have arrived in the Americas earlier than previously thought.
If confirmed, these footprints could rewrite the timeline of the peopling of the Americas.
Scientists have discovered over 60 human footprints, or "ghost tracks," in White Sands National Park in New Mexico. The footprints are between 23,000 and 21,000 years old, which means they were made during the last ice age. This discovery1 pushes back the timeline of human arrival in North America by several thousand years.
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