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A giant meteor blasts an enormous crater into Earth's surface, causing the end of what scientists call the Age of Dinosaurs. Gail Gibbons presents the most recent and up-to-date theories about the history of dinosaurs and dinosaur discoveries. She...
Which dinosaur was the greatest? Was it the tallest, the biggest, the strongest, the smartest, the weirdest, the fastest, or the smallest? Or was it the oldest bird, the best parent, the one with the best night vision, the best armor, or the...