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Amazing Dinoworld – Ep. 1 of 2: The Feather Revolution. (Dinosaur Superworld) https://www.youtube.com/watch?v=5Q8DxcYSsVo Those long arms, and feathers? Wonder if those long arms become wings. The claws, inherited but unnecessary, disappear. Gastroliths? Ostriches and chickens. Flightless birds with wings. Wings are good for display and threat. Wings with feathers can turn over eggs. I wonder
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