Photos: Ancient Shrimp-Like Critter Was Tiny But Fierce
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About 508 million years ago, a fierce water beastie with paddles and a shrimp-like tail sped through the water, hunting for prey.Photos: Ancient Shrimp-Like Critter Was Tiny But Fierce
About 508 million years ago, a fierce water beastie with paddles and a shrimp-like tail sped through the water, hunting for prey. Read more