Stock Photo: The San Diego Natural History Museum hosted an exhibit on feathered dinosaurs.  Dr. Czerkas Stephen is at the center of the debate on where dinosaurs end and birds begin.  The deinonycus behind him is his own life-size sculpture of the winged but flightless proto-bird. He directs the Dinosaur Museum, Blanding, Utah.

Stock Photo: 4369-631 The San Diego Natural History Museum hosted an exhibit on feathered dinosaurs.  Dr. Czerkas Stephen is at the center of the debate on where dinosaurs end and birds begin.  The deinonycus behind him is his own life-size sculpture of the winged but flightless proto-bird. He directs the Dinosaur Museum, Blanding, Utah.