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DINOSAUR. To see the fossilized bones of ancient dinosaurs, go to a museum. To see living descendants of dinosaurs, just find some birds. A bird may not fit the common notion of dinosaur (dinosaur means "terrifying lizard"), but scientists are certain that all birds are direct descendants of a small meat-eating dinosaur. Birds can be considered the feathered crown of the dinosaur family tree. Birds' lizardlike ancestors died out 65 million years ago.

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