Dec 1 (Reuters) - More than half a millennium ago, Aztec warriors brandished a weapon called a macuahuitl, a wooden club with jagged obsidian blades embedded on its sides, to inflict gruesome wounds ...

Paleontologists have revealed a new species of armored dinosaur with a "tail club" that served as a weapon. The dinosaur, named Huaxiazhoulong shouwen, would likely have measured around 20 feet in ...

Ankylosaurs, a group of dinosaurs often compared to Pokémon, were built like walking tanks, with bony armor plating their backs and sides. They lived during the Late Jurassic (164 to 145 million years ...

Ankylosaur armor could likely withstand the impact of a high-speed car crash, the best-preserved dinosaur fossil on record has revealed. The fossil belonged to a nodosaur, a plant-eating dinosaur that ...