If the Aztecs thought they invented the macuahuitl they were ...


If the Aztecs thought they invented the macuahuitl they were wrong

A newly discovered armoured dinosaur wielded a tail resembling the culture’s war club


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 on enemies in close combat.

A newly identified armoured dinosaur that inhabited the Patagonian region of Chile did much the same thing to ward off predators about 74-million years ago with a tail resembling a macuahuitl, scientists said recently.

The four-legged, plant-eating creature named Stegouroselengassen exemplifies the arms race that unfolded during the age of dinosaurs to acquire new traits to survive in a perilous world. It also sheds light on the evolution of a highly successful group of tank-like dinosaurs called ankylosaurs...

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