Studies of the horns, spikes, plates and clubs of dinosaurs could help settle a long-standing debate over their function ...

The animals ... reptiles also have “rectangular-shaped” osteoderms on their backs, bony deposits found in the skin of some reptiles and dinosaurs, creating a kind of tough armor on the top ...

How does the armored tiling on shark and ray cartilage maintain a continuous covering as the animals' skeletons expand during ...