A construction crew was working at the Seattle-Tacoma Airport in 1961 when they came across bones. The bones, which dated back 12,700 years, belonged to an extinct giant ground sloth. The giant sloth ...
In 1991, a skateboarder discovered 1.5-million-year-old giant ground sloth fossils in Wilmington, North Carolina. Scientists from the Smithsonian determined the fossils belonged to two different ...
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