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| largest family of living sharks; found worldwide especially in tropical waters; largest family of living sharks; found worldwide especially in tropical waters; dorsal fin lacks spines: requiem sharks including tiger sharks and soupfin sharks ❲Carcharhinidae❳ | ||||
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| sand sharks; sand sharks; in some classifications coextensive with family Carcharhinidae ❲Odontaspididae, Carchariidae❳ |