Fossil Testifies to Pachycephalosaur Pain

Did dome-headed dinosaurs really butt heads? While not one of the most important subjects in paleontology, the question is one of the most fraught. The thick-skulled dinosaurs look as if they were perfectly suited to cracking heads, much like modern bighorn sheep do, but whether or not dinosaurs like Pachycephalosaurus really knocked noggins has depended on who you asked. While some studies have concluded that these dinosaurs were fully capable of bashing skulls, other analyses have disagreed and pointed out that rounded, dome-shaped heads were actually poor weapons in such contests. Leer más.