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A Feather Inside a Tyrannosaur's Droppings Is the First Ever Found That Way, and It May Say Why Some Birds Survived

A nodule half the size of a golf ball, picked up in Montana in 2016, holds feathers, gar scales and the leg bones of a diving bird eaten 66 million years ago. Two of the feathers have a structure otherwise unknown until ten million years after the extinction.

Sep 12, 2026