Since the 1990s, paleontologists have been pulling 125-million-year-old complete dinosaur skeletons from the rocks of the Lujiatun in Northwestern China, most seemingly posed in perfect ...

Yet none of the sleeping dinosaurs show any signs of waking. And Repenomamus seems to have been thoroughly enjoying its last meal. So…how did they all miss the lahar? Well, it's possible ...

Unlike the victims of Pompeii, who show signs of heat shock, many of the Yixian dinosaurs appear to have died in relaxed, almost sleeping postures. Their feathers are intact, and their bodies show ...