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crocodileostrichpenguinwhalesharkhippozebralionbutterflygiraffehummingbirdreptile爬行动物mammal哺乳动物insect昆虫crocodile鳄鱼ostrich鸵鸟penguin企鹅whale鲸shark鲨hippo河马zebra斑马lion狮子butterfly蝴蝶hummingbird蜂鸟giraffe长颈鹿wing翅膀Mammals•Mammalsbodiesarecoveredwithhairorfur.•Mothermammalsfeedmilktotheirbabies.•MammalshavewarmbloodBirds•Allbirdshavefeathers.•Allbirdshavetwowings.•Motherbirdslayeggs.Reptiles•Allreptileshavescales.•Motherreptileslayeggs.•Mostreptileshavefourlegs.Asnakeisareptileswithnolegs.Mammals:wingsmilkscalesfeathereggsReptiles:scalesmilkhairwingsfeatherBirds:milkfeathersscalesseaMammals:wingsscalesfeatherseggsReptiles:milkhairwingsfeathersBirds:milkscalesseamilkscalesfeathersFirst,Ihavewings.Second,Ihavefeathers.WhatkindofanimalsamI?Youareabird!First,Ihavescales.Second,Ilayeggs.WhatkindofanimalsamI?Youareareptiles!First,Ihavehair.Second,Ihavewarmblood.WhatkindofanimalsamI?Youareamammals!