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Vertebrates, Fishes, Amphibians and Reptiles
Mammal
Mammal definition: A warm-blooded vertebrate whose young feed on milk produced by the mother.
Related Terms
Amniotic Egg
Amphibian
Cartilage
Chordate
Ectotherm
Endotherm
Gill
Lung
Notochord
Reptile
Scale
Swim Bladder
Tadpole
Ventricle
Vertebrate
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