Half A Billion Years Ago, The Grand Canyon Was Filled With Penis WormsThe new penis worm has been dubbed Kraytdraco spectatus, after the krayt dragon from Star Wars.Image credit: Rhydian EvansThe Grand Canyon is undeniably a wonder of nature – and according to a new paper from a team of palaeontologists and geologists, it always has been. Half a billion years ago, long before humans were around...
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