News Main Animals Archaeology Dinosaurs Earth History Human Animal Space Tech   Getty Images |   Shaky Ground Sunset light falls on Great Fountain Geyser on Yellowstone's Firehole Lake. The iconic national park was jostled by a host of small earthquakes for a third straight day Monday, and scientists watched closely to see whether the more than 250 tremors were a sign of something bigger to come. | Discovery News Video   « back to article

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