acanthobrama hulensis acipenseriformes actinopterygii adaptation africa alberta alga anglerfish angling animal antarctica aquarium asia atheriniformes aulopiformes australia barbus microbarbis beardfish beloniformes beryciformes bichir biological classification bonefish bowfin california carboniferous carp carp bream catfish catostomidae cetomimiformes characiformes chondrostei chondrostoma scodrense cichlid clupeiformes cobitidae continent convergent evolution cretaceous cyprinodontiformes cyprinus yilongensis danionin devonian digital object identifier dorsal fin durango shiner early triassic ecological niche eel electric eel elopiformes eocene esociformes eurasia evarra bustamantei evarra eigenmanni evarra tlahuacensis evolution evolutionary radiation fishbase fishes of the world flatfish gadiformes gar gasterosteiformes gnathostomata goldfish gondwana gonorynchiformes grass carp gulf states marine fisheries commission gymnotiformes habitat habitat destruction habitus harelip sucker hiodontiformes international union for conservation of nature invasive species invertebrate jellynose fish jurassic knifefish koi lampriformes las vegas dace laurasia loach mae klong minnow miocene mugiliformes myctophiformes neopterygii north africa north america notacanthiformes oligocene ophidiiformes ordovician osmeriformes ostariophysi osteichthyes osteoglossiformes overfishing paleocene pangaea perciformes percopsiformes permian pharyngeal teeth plate tectonics pollution saccopharyngiformes salado shiner salmonidae scorpaeniformes silurian snake river sucker south america southeast asia species stephanoberyciformes stomiiformes stumptooth minnow synbranchiformes syngnathiformes teleostei telestes ukliva tetraodontiformes the bridge on the river kwai toadfish triassic weberian apparatus wikimedia commons zeiformes