– Manuscript – New research confirms that a fossil of human footprints found in the U.S. state of New Mexico likely represents the oldest direct evidence of humans living in the Americas. The footprints were discovered at the edge of the remains of an ancient lake in White Sands National Park in southern New Mexico. The research, published recently in Science, suggests … [Read more...] about Study: Footprints in New Mexico May Be Oldest Sign of Humans