An artist's illustration shows giant predator worms swimming in an ancient sea.
Mandatory Credit: Artwork by Bob Nicholls/@BobNichollsArt
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Newly discovered large predator worms ruled the seas as Earth’s earliest carnivores, study finds
Long before the first sharks appeared, large predator worms were the “terror beasts” of the seas more than 500 million years ago, according to new research.
