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Birds evolved from dinosaurs and birds urinate in a sort of gelatinous goo instead of liquid like mammals, so when did that adaption take place? before/after flight, while still dinosaurs, How would we know?
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Birds evolved from dinosaurs and birds urinate in a sort of gelatinous goo instead of liquid like mammals, so when did that adaption take place? before/after flight, while still dinosaurs, How would we know?
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