duck-billed dinosaurs

(Newser) - A Florida State University professor thinks he's solved one of the "greatest riddles" about non-avian dinosaurs: Did their eggs incubate slowly like those of lizards, or quickly like those of birds? The former, found Gregory Erickson and his team, and they came to their conclusion by studying embryonic...

(Newser) - Forget seeing Russia from Alaska: Scientists have found a trove of tracks left behind by dinosaurs that once roamed our northernmost state—and some of them are pretty big. A paleontology team discovered a "world-class" trail in the northeast corner of Denali National Park that was littered with thousands...