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A stunning discovery in Mongolia changes what's known about domed-head dinosaurs

By Ari Daniel
Published October 13, 2025 at 3:13 PM CDT

The pachycephalosaurs were a unique group of dinosaurs with domed heads. But scientists haven't known much about them because their fossils have been so incomplete. A stunning discovery from southern Mongolia has changed that.

Copyright 2025 NPR
Ari Daniel
Ari Daniel is a reporter for NPR's Science desk where he covers global health and development.