A versão de 2012 da Lista Vermelha da UICN listava 3375 animais em perigo de extinção.
A FiloClasseOrdemFamíliaEspécie / SubespéciePopulação ChordataReptiliaSquamataAnguidaeAbronia chiszari ChordataReptiliaSquamataAnguidaeAbronia deppii ChordataReptiliaSquamataAnguidaeAbronia fuscolabialis ChordataReptiliaSquamataAnguidaeAbronia graminea ChordataReptiliaSquamataAnguidaeAbronia martindelcampoi ChordataReptiliaSquamataAnguidaeAbronia matudai ChordataActinopterygiiCypriniformesCyprinidaeAcanthobrama centisquama ChordataReptiliaSquamataLacertidaeAcanthodactylus ahmaddisii ChordataReptiliaSquamataLacertidaeAcanthodactylus blanci ChordataReptiliaSquamataLacertidaeAcanthodactylus schreiberi ChordataAvesFalconiformesAccipitridaeAccipiter gundlachi ChordataMammaliaChiropteraPteropodidaeAcerodon humilis ChordataMammaliaChiropteraPteropodidaeAcerodon jubatus ChordataAvesCoraciiformesBucerotidaeAceros narcondami ChordataActinopterygiiCypriniformesCyprinidaeAchondrostoma occidentale ChordataActinopterygiiCypriniformesCyprinidaeAchondrostoma salmantinum ArthropodaInsectaOdonataCoenagrionidaeAciagrion fasciculare ChordataActinopterygiiAcipenseriformesAcipenseridaeAcipenser baerii ChordataActinopterygiiAcipenseriformesAcipenseridaeAcipenser transmontanussubpopulação do Rio Kootenai ChordataActinopterygiiAcipenseriformesAcipenseridaeAcipenser transmontanussubpopulação do Rio Fraser Superior ChordataAvesPasseriformesSylviidaeAcrocephalus aequinoctialis ChordataAvesPasseriformesSylviidaeAcrocephalus brevipennis ChordataAvesPasseriformesSylviidaeAcrocephalus caffer ChordataAvesPasseriformesSylviidaeAcrocephalus griseldis ChordataAvesPasseriformesSylviidaeAcrocephalus rodericanus ChordataAvesPasseriformesSylviidaeAcrocephalus vaughani ArthropodaInsectaLepidopteraLycaenidaeAcrodipsas illidgei CnidariaAnthozoaScleractiniaAcroporidaeAcropora roseni CnidariaAnthozoaScleractiniaAcroporidaeAcropora rudis CnidariaAnthozoaScleractiniaAcroporidaeAcropora suharsonoi MolluscaGastropodaStylommatophoraHygromiidaeActinella carinofausta ArthropodaArachnidaAraneaeLycosidaeAdelocosa anops ChordataAmphibiaAnuraEleutherodactylidaeAdelophryne maranguapensis MolluscaGastropodaArchitaenioglossaCyclophoridaeAdelopoma stolli ChordataReptiliaSquamataDipsadidaeAdelphicos daryi ChordataAmphibiaAnuraBufonidaeAdenomus kelaartii MolluscaGastropodaStylommatophoraHelicarionidaeAdvena charon ChordataAvesGalliformesMegapodiidaeAepypodius bruijnii ChordataAvesPasseriformesNectariniidaeAethopyga duyvenbodei ChordataChondrichthyesRajiformesMyliobatidaeAetobatus flagellum ChordataChondrichthyesRajiformesMyliobatidaeAetomylaeus maculatus ChordataChondrichthyesRajiformesMyliobatidaeAetomylaeus vespertilio MolluscaGastropodaHygrophilaPlanorbidaeAfricanogyrus rodriguezensis MolluscaGastropodaHygrophilaPlanorbidaeAfricanogyrus starmuehlneri ArthropodaCrustaceaDecapodaPotamonautidaeAfrithelphusa monodosa ChordataAmphibiaAnuraHyperoliidaeAfrixalus knysnae ChordataAmphibiaAnuraHyperoliidaeAfrixalus lacteus ChordataAmphibiaAnuraHyperoliidaeAfrixalus sylvaticus ChordataAmphibiaAnuraHyperoliidaeAfrixalus uluguruensis ChordataReptiliaSquamataTyphlopidaeAfrotyphlops gierrai ArthropodaInsectaColeopteraDytiscidaeAgabus clypealis ArthropodaInsectaColeopteraDytiscidaeAgabus discicollis ArthropodaInsectaColeopteraDytiscidaeAgabus hozgargantae ChordataAmphibiaAnuraHylidaeAgalychnis annae ChordataAvesPasseriformesIcteridaeAgelaius tricolor ChordataAvesPasseriformesIcteridaeAgelaius xanthomus ChordataAvesApodiformesTrochilidaeAglaeactis aliciae ChordataAvesApodiformesTrochilidaeAglaiocercus berlepschi ChordataAmphibiaAnuraMantellidaeAglyptodactylus laticeps ArthropodaInsectaOdonataCoenagrionidaeAgriocnemis ruberrima ruberrima ChordataMammaliaCarnivoraUrsidaeAiluropoda melanoleuca ChordataReptiliaSquamataElapidaeAipysurus fuscus MolluscaBivalviaUnionoidaUnionidaeAlasmidonta arcula MolluscaBivalviaUnionoidaUnionidaeAlasmidonta atropurpurea MolluscaBivalviaUnionoidaUnionidaeAlasmidonta triangulata ChordataActinopterygiiCypriniformesCyprinidaeAlburnus mentoides ChordataActinopterygiiCypriniformesCyprinidaeAlburnus orontis ChordataActinopterygiiCypriniformesCyprinidaeAlburnus sarmaticus ChordataActinopterygiiCypriniformesCyprinidaeAlburnus schischkovi ChordataActinopterygiiCypriniformesCyprinidaeAlburnus volviticus ChordataMammaliaCetartiodactylaBovidaeAlcelaphus buselaphus lelwel ChordataMammaliaCetartiodactylaBovidaeAlcelaphus buselaphus swaynei ChordataActinopterygiiPerciformesCichlidaeAlcolapia alcalicus ChordataActinopterygiiCharaciformesAlestidaeAlestes bouboni ChordataActinopterygiiCharaciformesAlestidaeAlestopetersius nigropterus ChordataAvesPasseriformesTurdidaeAlethe choloensis ChordataReptiliaSquamataLacertidaeAlgyroides marchi ChordataAmphibiaAnuraAromobatidaeAllobates kingsburyi ChordataAmphibiaAnuraAromobatidaeAllobates mandelorum ChordataAmphibiaAnuraAromobatidaeAllobates ranoides ArthropodaInsectaOdonataMegapodagrionidaeAllolestes maclachlani ChordataReptiliaSquamataPseudoxyrhophiidaeAlluaudina mocquardi ArthropodaInsectaLepidopteraLycaenidaeAloeides nubilus ChordataActinopterygiiClupeiformesClupeidaeAlosa volgensis ChordataMammaliaPrimatesAtelidaeAlouatta pigra ChordataMammaliaPrimatesAtelidaeAlouatta ululata ChordataReptiliaSquamataDipsadidaeAlsophis rijgersmaei ChordataReptiliaSquamataDipsadidaeAlsophis rufiventris ChordataReptiliaSquamataDipsadidaeAlsophis sanctonum ChordataAmphibiaAnuraBufonidaeAltiphrynoides malcolmi CnidariaAnthozoaScleractiniaPoritidaeAlveopora excelsa CnidariaAnthozoaScleractiniaPoritidaeAlveopora minuta MolluscaGastropodaLittorinimorphaHydrobiidaeAlzoniella asturica MolluscaGastropodaLittorinimorphaHydrobiidaeAlzoniella delmastroi MolluscaGastropodaLittorinimorphaHydrobiidaeAlzoniella edmundi MolluscaGastropodaLittorinimorphaHydrobiidaeAlzoniella finalina ArthropodaInsectaLepidopteraNymphalidaeAmauris comorana ChordataAvesGruiformesRallidaeAmaurornis olivieri ChordataAvesApodiformesTrochilidaeAmazilia boucardi ChordataAvesApodiformesTrochilidaeAmazilia castaneiventris ChordataAvesApodiformesTrochilidaeAmazilia luciae ChordataAvesPsittaciformesPsittacidaeAmazona imperialis ChordataAvesPsittaciformesPsittacidaeAmazona oratrix ChordataAvesPsittaciformesPsittacidaeAmazona rhodocorytha ChordataAvesPsittaciformesPsittacidaeAmazona vinacea ChordataAvesPsittaciformesPsittacidaeAmazona viridigenalis ChordataActinopterygiiSiluriformesAmblycipitidaeAmblyceps arunchalensis ChordataReptiliaSquamataIguanidaeAmblyrhynchus cristatus mertensi ChordataReptiliaSquamataIguanidaeAmblyrhynchus cristatus nanus ChordataMammaliaAfrosoricidaChrysochloridaeAmblysomus marleyi ChordataAmphibiaCaudataAmbystomatidaeAmbystoma altamirani ChordataAmphibiaCaudataAmbystomatidaeAmbystoma ordinarium ChordataAmphibiaAnuraPyxicephalidaeAmietia inyangae ChordataAmphibiaAnuraPyxicephalidaeAmietia johnstoni ChordataAmphibiaAnuraBufonidaeAmietophrynus brauni ChordataAmphibiaAnuraBufonidaeAmietophrynus djohongensis ChordataAmphibiaAnuraBufonidaeAmietophrynus pantherinus ChordataAmphibiaAnuraBufonidaeAmietophrynus villiersi ChordataMammaliaRodentiaSciuridaeAmmospermophilus nelsoni ChordataAmphibiaAnuraRanidaeAmolops hainanensis ChordataAmphibiaAnuraRanidaeAmolops hongkongensis ChordataMammaliaChiropteraFuripteridaeAmorphochilus schnablii ArthropodaInsectaColeopteraElateridaeAmpedus assingi ArthropodaInsectaColeopteraElateridaeAmpedus quadrisignatus MolluscaGastropodaStylommatophoraAcavidaeAmpelita fulgurata MolluscaGastropodaStylommatophoraAcavidaeAmpelita julii ChordataReptiliaSquamataNatricidaeAmphiesma metusia ChordataReptiliaSquamataScincidaeAmphiglossus decaryi ChordataActinopterygiiSiluriformesAmphiliidaeAmphilius caudosignatus ChordataActinopterygiiSiluriformesAmphiliidaeAmphilius korupi ChordataActinopterygiiSiluriformesAmphiliidaeAmphilius lamani ChordataActinopterygiiPerciformesCichlidaeAmphilophus margaritifer ArthropodaInsectaOrthopteraTetrigidaeAmphinotus nymphula ArthropodaInsectaOrthopteraTetrigidaeAmphinotus pupulus MolluscaGastropodaStylommatophoraCamaenidaeAmplirhagada astuta MolluscaGastropodaStylommatophoraCamaenidaeAmplirhagada questroana ChordataActinopterygiiCypriniformesCyprinidaeAnabarilius alburnops ChordataActinopterygiiCypriniformesCyprinidaeAnabarilius polylepis CnidariaAnthozoaScleractiniaAcroporidaeAnacropora spinosa ChordataActinopterygiiCypriniformesCyprinidaeAnaecypris hispanica ArthropodaInsectaColeopteraCerambycidaeAnaglyptus luteofasciatus ArthropodaInsectaColeopteraCerambycidaeAnaglyptus praecellens ChordataAvesPasseriformesTyrannidaeAnairetes alpinus ChordataAvesAnseriformesAnatidaeAnas bernieri ChordataAvesAnseriformesAnatidaeAnas chlorotis ChordataAvesAnseriformesAnatidaeAnas melleri ChordataAvesAnseriformesAnatidaeAnas nesiotis ChordataAvesAnseriformesAnatidaeAnas wyvilliana ChordataAmphibiaAnuraBufonidaeAnaxyrus californicus ChordataAmphibiaAnuraBufonidaeAnaxyrus canorus ChordataAmphibiaAnuraBufonidaeAnaxyrus houstonensis ChordataAmphibiaAnuraBufonidaeAnaxyrus nelsoni MolluscaGastropodaHygrophilaPlanorbidaeAncylus lapicidus MolluscaGastropodaHygrophilaPlanorbidaeAncylus tapirulus ChordataAmphibiaAnuraPyxicephalidaeAnhydrophryne ngongoniensis ChordataAmphibiaAnuraPyxicephalidaeAnhydrophryne rattrayi ArthropodaInsectaDermapteraCarciniphoridaeAnisolabis scotti ChordataActinopterygiiPerciformesHaemulidaeAnisotremus moricandi ChordataReptiliaSquamataAnniellidaeAnniella geronimensis ChordataAmphibiaAnuraMicrohylidaeAnodonthyla hutchisoni ChordataAmphibiaAnuraMicrohylidaeAnodonthyla rouxae ChordataAvesPsittaciformesPsittacidaeAnodorhynchus hyacinthinus ChordataAvesPsittaciformesPsittacidaeAnodorhynchus leari ChordataReptiliaSquamataPolychrotidaeAnolis ahli ChordataReptiliaSquamataPolychrotidaeAnolis amplisquamosus ChordataReptiliaSquamataPolychrotidaeAnolis breedlovei ChordataReptiliaSquamataPolychrotidaeAnolis cusuco ChordataReptiliaSquamataPolychrotidaeAnolis guafe ChordataReptiliaSquamataPolychrotidaeAnolis haetianus ChordataReptiliaSquamataPolychrotidaeAnolis hobartsmithi ChordataReptiliaSquamataPolychrotidaeAnolis koopmani ChordataReptiliaSquamataPolychrotidaeAnolis loveridgei ChordataReptiliaSquamataPolychrotidaeAnolis marron ChordataReptiliaSquamataPolychrotidaeAnolis proboscis ChordataReptiliaSquamataPolychrotidaeAnolis pygmaeus ChordataReptiliaSquamataPolychrotidaeAnolis ruizii ChordataReptiliaSquamataPolychrotidaeAnolis strahmi ChordataAmphibiaAnuraBufonidaeAnsonia guibei ChordataAmphibiaAnuraBufonidaeAnsonia latidisca ChordataAmphibiaAnuraBufonidaeAnsonia platysoma ArthropodaInsectaColeopteraAnthicidaeAnthicus sacramento ChordataAvesPasseriformesNectariniidaeAnthreptes pallidigaster ChordataAvesPasseriformesMotacillidaeAnthus sokokensis MolluscaGastropodaLittorinimorphaHydrobiidaeAntrobia culveri MolluscaGastropodaArchitaenioglossaViviparidaeAnulotaia forcarti ChordataAvesTrogoniformesTrogonidaeApalharpactes reinwardtii ChordataAvesPasseriformesCisticolidaeApalis flavigularis ChordataActinopterygiiCyprinodontiformesCyprinodontidaeAphanius baeticus ChordataActinopterygiiCyprinodontiformesCyprinodontidaeAphanius burduricus ChordataActinopterygiiCyprinodontiformesCyprinodontidaeAphanius iberus ChordataActinopterygiiCyprinodontiformesCyprinodontidaeAphanius stiassnyae ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion alpha ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion amoenum ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion bamilekorum ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion bualanum ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion celiae celiae ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion franzwerneri ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion fulgens ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion lugens ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyosemion passaroi ChordataActinopterygiiCyprinodontiformesNothobranchiidaeAphyo