What am I?

Hints: 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. Return to Homework Helper Page