A 12-METRE monolith, hacked out of limestone by stone-age humans some nine thousand years ago, has been found at the bottom of the Mediterranean. The enormous stone totem, now split in two and sitting in the Sicilian Channel between Tunisia and Sicily, was hewed from a rocky outcrop some 300m away when the Mediterranean Sea was still a dry basin. It’s now under 40m of water. The new study, published in the Journal of Archaeological Science, says the area was submerged about 9350 years ago (give or take 200 years) when the last Ice Age retreated. Before that time the...