But some experts are skeptical about the new findings.
A 37,000-year-old mammoth butchering site, uncovered in New Mexico, might be the earliest evidence of humans in North America, controversial research finds. Some of the bones at the site show signs of being handled by humans or even being used as tools, which is"some of the most conclusive evidence" yet that humans settled in North America much earlier than experts previously thought, according to the new study.
Tiny particles found in the sediment surrounding the bones also included crystallized ash from what researchers suspect was a fire, possibly used to cook the mammoth meat as well as other small animals. This time frame suggests that the pre-Clovis people arrived in North America after the end of the Last Glacial Maximum — the most recent period when ice sheet coverage across Earth was at its greatest extent, between 26,500 and 20,000 years ago. The melting ice sheets likely provided the pre-Clovis people with an opportunity to cross the Bering Land Bridge, a piece of land that once connected North America and Asia.
"People in our field usually err on the side of caution, and the simplest explanations are preferred," Tackney said."In that sense, I am always extremely skeptical of reports from sites like these." "There really are only a couple efficient ways to skin a cat, so to speak," Rowe said."The butchering patterns are quite characteristic."
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