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

The stegosaurus was one of the world's most distinctive dinosaurs, featuring pointy plates on its back. Hatton has called Apex ''a coloring book dinosaur,'' for its well-preserved features.

Would a T.rex catch a Triceratops? What did a Stegosaurus eat? Where did the Yi find its food? How do we know what dinosaurs looked like? Make predictions, use scientific equipment and perform ...