More at http://scifri.me/hq05xx
Modern birds evolved from a group of small carnivorous dinosaurs 150 million years ago. Developmental biologist Bhart-Anjan Bhullar retraced this history by molecularly transforming an embryonic chicken beak into a snout that was structurally similar to a small dinosaur. Bhullar discusses what this genetic approach could tell us about the transition from dinosaurs to chickens.