#dusky_shark__duskyshark__Carcharhinus_obscurus  relatively slender blue-gray shark; nearly worldwide in tropical and temperate waters
  supertype:  requiem_shark__requiemshark  any of numerous sharks from small relatively harmless bottom-dwellers to large dangerous oceanic and coastal species
  member of:  genus_Carcharhinus__Carcharhinus  type genus of the Carcharhinidae
     member of:  family_Carcharhinidae__Carcharhinidae  largest family of living sharks; found worldwide especially in tropical waters; dorsal fin lacks spines: requiem sharks including tiger sharks and soupfin sharks
        member of:  subclass_Elasmobranchii__Elasmobranchii__Selachii__subclass_Selachii  sharks; rays; dogfishes; skates
           member of:  class_Chondrichthyes__Chondrichthyes  cartilaginous fishes
              member of:  subphylum_Vertebrata__Vertebrata__Craniata__subphylum_Craniata  fishes; amphibians; reptiles; birds; mammals
                 member of:  phylum_Chordata__Chordata  comprises true vertebrates and animals having a notochord
                    member of:  kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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