group
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features
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examples
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fish
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Live in water
Breathe with gills
cold-blooded
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Snapper
.Aholehole
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Amphibians
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reptiles
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Crocodilia — crocodiles, gharials, caimans and alligators
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bird
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They breathe mainly by means of gills. Nearly all fish are also cold-blooded animals. In addition, almost all fish have fins, which they use for swimming.
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mammals
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All mammals (including humans) have the same distinctive features. These include fur or hair growing from the skin. mammary glands that, in females, produce milk for feeding the young
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