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March 2, 2007
Q. If dinosaurs didn't go extinct, what did they do?
A. The big ones certainly disappeared in the global catastrophe of 65 million years ago, but small, evasive dinosaurs left many surviving descendants, “creatures that can be described as warm-blooded reptiles of a raptorial persuasion, although we more often call them birds,” says Nigel Calder in “The Magic Universe.” The idea of barnyard chickens being related to fearsome T. rex may seem a joke, until we remember that the tyrannosaurs ran about on two legs, as birds do, after hatching out of giant chicken-like eggs. And some of the small fast-running dinosaurs seem similar to flightless birds like ostriches.
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