Humans were living in a lava tube 7000 years ago on the Arabian Peninsula - Livescience.com
Archaeologists in Saudi Arabia have discovered that humans were living in a lava tube at least 7,000 years ago and possibly earlier, a new study finds.
The lava tube, called Umm Jirsan, is located i… [+5230 chars]
The lava tube, called Umm Jirsan, is located i… [+5230 chars]
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