When did people first arrive in South America? It's a matter of some debate, but curious marks cut into an ancient shelled mammal suggest that humans may have been roaming the continent thousands of ...
Fossilized bones from an extinct, shelled mammal offer us the latest clue about when humans arrived in South America. Scientists have long argued over when people first set foot on the continent ...
WASHINGTON (Reuters) - DNA coaxed out of a 12,000-year-old fossil from Argentina is providing unique insight into one of the strangest Ice Age giants: a tank-like mammal the size of a small car with a ...
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