Page 103 - The Dinosaur Book and Other Wonders of the Prehistoric World (DK-Smithsonian)

Styracosaurus lived in the same region and time as the evolved to impress other dinosaurs of its own species. Males
tyrannosaurs Gorgosaurus and Daspletosaurus—both may have competed for territory and mates just like modern
formidable predators that would have seen it as potential bison and deer, and the male with the most imposing array
prey. If attacked, Styracosaurus may have defended itself with of horns would have had few challengers. But if two rivals
its stout, sharp nose horn. But the dramatic crown around its were closely matched, they may have fought in head-to-head
frill would have had little defensive value, and it probably combat until one backed off in defeat.

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