5.5-million-year-old cave holds prehistoric secrets few people have ever seen
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A cave in eastern Romania has a unique environment that is hostile, and potentially deadly, for humans but makes a perfect home for all sorts of prehistoric invertebrates. The Movile Cave, located a few miles from the Black Sea, was sealed for more than five million years when it was discovered in the mid-1980s and, to date, fewer than 100 people have been allowed to enter. So far—48 species of creatures have been found living in the depths of the treacherous cave, most of which do not exist anywhere...