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Feathered Dinosaurs and the Origins of Flight

Deinonychus

 

Deinonychus sculpture head shot

4. Deinonychus sculpture head shot. With a mouth full of teeth, Deinonychus may not appear to be very bird-like, but fossils now indicate that it was a bird. Sculpture by Stephen Czerkas, © 2002.

Deinonychus sculpture full body

5. Deinonychus sculpture full body. Deinonychus was initially thought to be a bird-like dinosaur that represented what the ancestors of birds were like before flight had fully evolved. It is now known that Deinonychus had ancestors that were capable of flying which means that it was really a bird which had lost the ability to fly. Sculpture by Stephen Czerkas, © 2002.


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