At some time around the end of the last ice age, about 11,500 years before present (“BP” is defined as 1950 AD), the first human hunter-gatherer groups entered North America, where they encountered diverse environments […]
Read moreAt some time around the end of the last ice age, about 11,500 years before present (“BP” is defined as 1950 AD), the first human hunter-gatherer groups entered North America, where they encountered diverse environments […]
Read more“As discussed below, for millions of years and until very recently, elephant-like creatures were common in North America.
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