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Arizona’s Petrified Forest Is Changing What We Know About the Dawn of the Dinosaurs
New discoveries of small animals that lived more than 200 million years ago are changing how paleontologists think about biodiversity in the Triassic.
Hidden Arizona
Arizona's hidden side
Strange places, unforgettable stories, and road-trip ideas
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What’s Beneath the Bubbling Sand at the Bottom of the Montezuma Well?
A dive to the bottom of this ancient sinkhole reveals bubbling sand, thick like Silly Putty. Is there another pond beneath it?