Rare Dinosaur "Battering Ram" Skull Unearthed

A stunningly complete fossil skull of a Pachycephalosaurus has been discovered. This dinosaur is famous for its thick, domed head. The rare skull will go on public display for the first time at the Smithsonian's National Museum of Natural History. The dome is made of solid bone and was once thought to be used for head-butting rivals, like a battering ram. Scientists now debate its exact purpose. It may have been for display, combat, or both. This specimen is exceptional because most Pachycephalosaurus finds are only fragments of the distinctive dome. Visitors can see the skull and learn about this dinosaur's mysterious life. The exhibit aims to solve the puzzle of why it evolved such an extraordinary skull.