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Caption: Skeleton of Archaeopteryx, the "feathered" dinosaur of the late Jurassic bird, considered to be the first known bird.
Credit: Album / Universal Images Group / Encyclopaedia Britannica
Image size: 2542 × 2042 px | 14.9 MB
Print size: 21.5 × 17.3 cm | 1000.8 × 803.9 in (300 dpi)