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Meet an ancient giant sea scorpion

Division of Invertebrate Paleontology, Yale Peabody Museum of Natural History

Meet an ancient giant sea scorpion

It’s easy to see how scientists once thought the giant scorpion Acutiramus cummingsi was a vicious hunter. The creature, which roamed the sea floor about 400 million years ago, could grow more than 2 meters long and had massive serrated pincers. But A. cummingsi had poor eyesight better suited to life as an ambush predator, researchers report this week in Biology Letters. Instead of chasing after fast-swimming fish, the scorpion may have fed on soft-bodied, slow creatures like sea slugs, National Geographic reports.

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