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Looks like a geode, but this crystal-filled specimen is a fossilized crocodile egg! #FossiLab
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The crystals that fill this lovely specimen, USNM 12597, makes it appear geode-like, but microscopic analysis of the outer layer reveals structures typical of crocodilian eggshells! The egg was laid during the Eocene, about 45 million years ago, and is one of several collected in present day Wyomin
Overheard in Museums Day: "Do the Ruby Slippers still work?" to take you to Kansas? #OHMuseums
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1885: Mark Twain publishes "Adventures of Huckleberry Finn." Miss River. chart book from 1972:
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Bored on your #snowday? We'd love some help transcribing historic documents @TranscribeSI
Update: our @NationalZoo will OPEN at noon today. Cue Bao Bao's snow frolicking backflips
Happy #ValentinesDay! Sharing love-struck items, like this love letter from Frida Khalo
"Pour the wine, light the fire / Girl your wish is my command" - Boyz II Men ♥
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"If you're lost you can look, and you will find me / Time after time" - Cyndi Lauper ♥
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I think a lot about: My pollinator, the male Purple Throated Carib hummingbird #NMNHcupid
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#Snapshot Matthew Henson: Maryland sharecropper, world traveler and arctic explorer.
We love you, tweeps, and we wanted to sing you a Valentine song. But we couldn't decide which:
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Celebrate #Lincoln's birthday by taking an interactive 3D tour of his life mask @3D_Digi_SI
#Lincoln & #Darwin were both born today in 1809. How they shaped the modern world:
We have one bird collected by Charles Darwin in the collection, a Hudsonian godwit. #DarwinDay
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