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an animal with a backbone


A warm-blooded animal with hair or fur; female mammals produce milk to feed their young.


Vertebrates which live in water, usually have scales and breathe through gills.


A vertebrate with moist skin and no scales that lives part of its life in water and part on land.


Egg-laying vertebrates with feathers and forelimbs modified as wings.


A vertebrate that lays eggs and has lungs and scaly skin.


an animal without a backbone


any invertebrate with jointed legs


a class of arthropods that has three sections to their bodies: head, thorax, abdomen, and six legs.


an arthropod with two body sections, four pairs of legs, and no antennae

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