Ancient humans hid in Saudi Arabian lava tube for over 7,000 years yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
Researchers revealed in their new study that at least 7,000 years ago, people lived in the nearly a mile-long lava tube Umm Jirsan, adjacent to the Saudi Arabian city of Medina, reported Gizmodo. The tube is reported to be the longest in.