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Pregnant “Polly,” the pre-historic plesiosaur, at the L.A. Natural History Museum




Polly the plesiosaur and her baby. This fossil is on display at the Natural History Museum in Los Angeles.
Polly the plesiosaur and her baby. This fossil is on display at the Natural History Museum in Los Angeles.
LA Natural History Museum

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The pre-historic plesiosaur: it looked like the quintessential sea monster. It had a long neck, flippers and fangs. Think of the Loch Ness monster, and you are on the right track. But a paper published today in the journal "Science" says these ancient beasts may have actually been social creatures and doting mothers. The research is based on a fossil of a pregnant plesiosaur that's part of the new dinosaur exhibit at the Los Angeles Natural History Museum. Reporter Sanden Totten paid the specimen a visit.