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As detailed in this week’s Current Biology , researchers at the Yale Peabody Museum of Natural History and the Royal Ontario Museum drew on roughly 50 fossils specimens, collected from the Burgess Shale fossil bed in British Columbia, in order to identify Capinatator   praetermissus as a new genus and species of arrow worm. Fossilized chaetognaths that include evidence of soft tissue are incredibly rare—the researchers say only two other unequivocal specimens have been reported, and both from fossil beds in China. Many of the specimens in the new paper feature evidence of soft tissue, which allowed scientists to piece together the anatomy of the animal’s gut and musculature.

Sean penn steroids gunman

sean penn steroids gunman

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