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500-million-year-old poop of a primordial, predatory sea worm tells their story.

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07-04-2018 10:31pm

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Capt'n Midnight

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https://phys.org/news/2018-04-ancient-sea-worm-poops-evidence.html

"These are burrows of a wormlike animal where we have fossilized feces preserved," said Kimmig, collections manager at the KU Biodiversity Institute and Natural History Museum. "This is rare because feces decompose very easily—it's not a very stable product from animals. These were preserved because the worms lived in burrows about 4 inches deep. They were hunting out of these burrows. We have something that acted very similar to a modern Bobbitt worm."
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But this was likely one of the biggest predators in its environment—the animal was likely in the range of 6-12 inches with a diameter of three-quarters of an inch."

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