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The Science of the Olympics

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Swimming Spinosaurs

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Ask Smithsonian 2017

Why Did Mammals Survive When Dinosaurs Perished?

Had the non-avian dinosaurs not been wiped out 65 million years ago, our species would probably never existed

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Hubble Takes New Pluto Pics

Triceratops skeleton

Dancing With Dinosaurs

Bone vs. Stone: How to Tell the Difference

There is no single hard-and-fast rule for distinguishing rock from bone, but there are a few principles that can definitely help you tell the difference

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