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Fish Cold blooded Have fins Have gills Have scales Have flippers Are vertebrates Live in water Stages: egg, fry, adult |
Insects Cold blooded Have an exoskeleton Body Parts: head, thorax, abdomen Have six legs Have antennae Some have wings Are invertebrates Live on land, in desserts, in forests, in fields Stages: egg, larvae, pupa, adult |
Amphibians Warm blooded Have slimy smooth skin Have gills when young Have lungs when adults Are vertebrates Live in water and on land Stages: eggs, tadpole, adult |
Birds Warm blooded Have wings Have feathers Have beaks Have two legs Are vertebrates Live everywhere Stages: egg, chicks, adult |
Mammals Warm blooded Have fur Some have four legs Some have two legs Mothers produce milk Are vertebrates Live on all continents Give live birth |
Reptiles Cold blooded Have dry leathery skin Have scales Have lungs Are vertebrates Live everywhere except Antarctica Stages: egg, hatchling, adult |