T. Rex or a squirrel? A bizarre dinosaur discovery is challenging what we know about ancient predators

A new fossil discovery from northwestern China suggests a feathered, four-winged dinosaur may have preyed on ancient birds about 120 million years ago. The species, Jian changmaensis, a microraptor relative, was found at a site filled with clustered bird bones that resemble owl pellets. Researchers believe it could be the long-suspected predator behind the assemblage. The study expands known microraptor distribution and sheds light on bird evolution.

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