An eyeless, alien-like worm with two tentacles sprouting out of its head and covered in so many bristles it looked like a kitchen brush, would have been quite a sight during its heyday as it scarfed down seafloor mud some 508 million years ago.
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Senin, 22 Januari 2018
508-Million-Year-Old Bristly Worm Helps Solve an Evolutionary Puzzle
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