While walking through the Badlands, a hiker uncovered a fascinating fossil that belonged to a mysterious creature that roamed North America long before humans arrived. A South Dakota hiker’s chance encounter with a fossilized row of teeth jutting from parched soil has unveiled a 16.3-million-year-old secret buried in the Badlands. The tiny fossil, no larger than a house key, belonged to a Leptauchenia, a peculiar a... [2858 chars]
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