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They lay eggs

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They have scales

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Fishes have gills

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There are teeth involved sometimes

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How do fishes interact with other sea life

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Do fishes have a family relationship like mammals?

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Do fishes have a family relationship like mammals?

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How are fish classified (taxonomically)

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Can fishes communicate with other fishes

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Sharks are fishes

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There are fish that can live outside of the water

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1. agnatha (eg. lamphreys)
2. cartilaginous (eg. sharks)
3. osteiocthyes (eg. blue tang)

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What on earth does a fish with lungs AND gills do with the lungs?

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What on earth does a fish with lungs AND gills do with the lungs?

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Some fish may also have lungs

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Lampreys don’t have scales