Scientists have contested when the first humans lived in the Americas, with some finding evidence for life around 15,000 years ago, according to Smithsonian Magazine.
Researchers from White Sands National Park, the National Park Service, U.S.Researchers note that accurately dating the first people to arrive and live in the Western Hemisphere is still "uncertain and contested." "What we present here is evidence of a firm time and location when humans were present in North America," the report saidThe Associated Press noted that prior excavations in White Sands National Park have uncovered fossilized tracks left by a saber-toothed cat, dire wolf, Columbian mammoth and other animals from the ice age