Did Dinosaurs have Feathers?
Feathers or Scales?
Feathers or Scales?
The new egg is a link between dinosaurs and birds, and so evidence for the hypothesis that non avian theropods, the dinosaurs of the Cretaceous period, and birds had a common ancestor.
When Tyrannosaurus and its relatives dominated predation in North America and Asia, the abelisaurids occupied a similar niche in Patagonia and other areas of Gondwanaland, being the dominant predators in the Southern hemisphere.
Tests in the ice cores from Greenland show up ancient metal production
The idea of some dinosaurs giving birth to live young is risible. Is it?