Dino Ankle-Biters
This undated black-and-white artist rendering provided by the Proceedings of the National Academy of Sciences shows a life reconstruction of Hesperonychus elizabethae chasing a cicada through a forest in Alberta, Canada 75 million years ago. That's what Canadian researchers say they have found, the smallest meat-eating dinosaur yet discovered in North America. (AP Photo/Nicholas Longrich, University of Calgary)
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