Another case study is the mysterious underground cave complex situated in the southern part of Europe and has been baffling ...
ZME Science on MSN
For centuries, people gathered at this cave high in the Spanish mountains. Green rocks could show us why
The hike to Cave 338 is tough. You start at the Monastery of Núria in the eastern Pyrenees, which is already pretty high.
Hervé Bocherens says his colleagues find his research methods a little "crude." He dissolves 30,000-year-old animal bones in hydrochloric acid strong enough to burn through metal, soaks the bone ...
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