پر پرنده نفیس 66 میلیون ساله که در ریزش دایناسورها حفظ شده است

Exquisite 66-million-year-old bird feather preserved in dinosaur dropping

A dinosaur, possibly a young Tyrannosaurus rex, excreted a bird 66 million years ago, and one of its feathers is exquisitely preserved in the fossilised dropping