What am I?
All birds have beaks, feathers, and wings.
All amphibians are cold-blooded, born in water, and breathe through their skins and lungs or gills.
All mammals are warm-blooded, breathe through their lungs, and are able to nurse their young.
All fish have scales, a backbone, and breathe through gills.
All reptiles are cold-blooded, have scales, and breathe through their lungs.
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