Word: underlain
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Dates: during 1920-1929
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...blind or otherwise abnormally evolved to meet subterranean conditions, as are some of the animals found in Mammoth Cave. But they belong to normal surface species known to inhabit the lakes of Palestine. The excavators are puzzled, but advance the theory that the whole of North Africa is underlain by a subterranean sea, 300 feet beneath the surface, connected by passageways with bodies of water beyond Suez...