601:
434:
92:
466: in) in total length. Females are generally larger than males and have been reported up to 4.6 m (15 ft 1 in) in length. They commonly weigh 25 to 35 kg (55 to 77 lb), but specimens weighing more than 55 kg (121 lb) have been observed. The color pattern consists of a yellow, golden-tan or greenish-yellow ground color overlaid with a series of black or dark brown saddles, blotches, spots and streaks.
50:
418:
31:
944:
Rivas, Jesús A.; De La
Quintana, Paola; Mancuso, Marco; Pacheco, Luis F.; Rivas, Gilson A.; Mariotto, Sandra; Salazar-Valenzuela, David; Baihua, Marcelo Tepeña; Baihua, Penti; Burghardt, Gordon M.; Vonk, Freek J.; Hernandez, Emil; García-Pérez, Juán Elías; Fry, Bryan G.; Corey-Rivas, Sarah (February
619:
In captivity, the yellow anaconda has a reputation for being unpredictable and somewhat dangerous to humans, especially when caught from the wild, leading some professionals and keepers to begin efforts at captive-breeding. In the United States, the import, transportation and sale of the species
548:
Their prey consists nearly exclusively of aquatic or semi-aquatic species, including a wide variety of mammals, birds, reptiles, amphibians, fish and eggs. Larger specimens can prey upon larger animals, such as
2171:
494:. It prefers mostly aquatic habitats, including swamps, marshes, and brush-covered banks of slow-moving rivers and streams. The species appears to have been introduced in
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2127:
889:
2207:
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600:
2039:
2091:
2237:
846:
817:
804:
Mendez, M.; Waller, T.; Micucci, P. A.; Alvarenga, E.; Morales, J. C. (2007). "Genetic population structure of the yellow anaconda (
690:
1141:
1038:
Strüssmann, Christine (1997). "Feeding habits of the yellow anaconda, Eunectes notaeus Cope, 1862, in the
Brazilian Pantanal".
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788:
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360:
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254:
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The yellow anaconda has few predators. Juveniles and the occasional adult may be taken by caimans, larger anacondas,
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863:
537:
are the most common prey. Observations and analysis of gut and waste contents from regularly flooded areas in the
2227:
1924:
1860:
1288:
727:
91:
1436:
1351:
728:
Synopsis of the species of
Holcosus and Ameiva, with diagnoses of new West Indian and South American Colubridae
433:
498:, although it is unknown whether the small population (thought to derive from escaped pets) is reproductive.
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across state lines was banned in 2012 in an attempt to prevent the yellow anaconda from becoming an
1429:
1316:
1302:
808:) in Northern Argentina: management implications". In Henderson, Robert W.; Powell, Robert (eds.).
706:
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372:
212:
39:
517:. (2023) results in this species also being found in western Bolivia, northern Brazil and coastal
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1013:
625:
262:
235:
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86:
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918:
833:
Waller, T.; Micucci, P. A.; Alvarenga, E. (2007). "Conservation biology of the yellow anaconda (
2070:
533:
habitats. Most predation occurs from June to
November, when flooding has somewhat subsided and
2212:
2153:
2109:
2013:
1789:
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968:
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region of southwestern Brazil indicate that they are generalist feeders that employ both
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2018:
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1257:
1238:
1231:
947:"Disentangling the Anacondas: Revealing a New Green Species and Rethinking Yellows"
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has been observed in this species, though it is not clear how often this occurs.
561:. The prey-to-predator weight ratio is often much higher than for other types of
2184:
2052:
1985:
1914:
1821:
1811:
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1683:
1207:
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30:
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837:) in Northeastern Argentina". In Henderson, Robert W.; Powell, Robert (eds.).
628:. The conservation status of the yellow anaconda has not been assessed by the
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589:
438:
315:
311:
1976:
972:
2083:
1779:
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890:"Hay registros de anaconda amarilla (Eunectes notaeus) en el norte del país"
341:
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783:. Vol. 1. Los Angeles: University of California Press. p. 397.
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841:. Eagle Mountain, Utah: Eagle Mountain Publishing. pp. 340–362.
812:. Eagle Mountain, Utah: Eagle Mountain Publishing. pp. 405–415.
577:
573:
562:
426:
390:
293:
163:
113:
1947:
717:, with diagnoses of new West Indian and South American Colubridae".
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592:, and raptors. The species is also hunted by humans for its skin.
534:
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416:
319:
153:
76:
70:
1057:
Barros, M. M.; Draque, J. F.; Micucci, P. A.; Waller, T. (2011).
474:
The range of the yellow anaconda encompasses the drainage of the
1119:
629:
2031:
1951:
1123:
1089:
719:
Proceedings of the
Academy of Natural Sciences of Philadelphia
529:
The yellow anaconda forages predominantly in shallow water in
779:
McKay, George; Cooke, Fred, eds. (2004). "Snakes: Reptiles".
384:
378:
490:, and western Brazil to northeastern Argentina and northern
365:
1059:"Eunectes notaeus (Yellow Anaconda). Diet / Cannibalism"
988:"A Review of Prey Taken by Anacondas (Squamata: Boidae:
409:
stated, "Dorsal scales are larger and in fewer rows."
334:
Further information on etymology of generic name:
452:
Adults grow to an average of 3.7 m (12 ft
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1085:"U.S. bans imports of 4 exotic snake species"
986:Thomas, Oliver; Allain, Steven J. R. (2021).
870:. Hamburg, Germany: Zoological Museum Hamburg
8:
314:are currently recognized. Like all boas and
302:to southern South America. It is one of the
604:A yellow anaconda in the waterhole, at the
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1816:
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306:but smaller than its close relative, the
624:in vulnerable natural areas such as the
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674:
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913:
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395:). In distinguishing his new species
7:
709:(1862). "Synopsis of the species of
2208:IUCN Red List least concern species
923:NAS - Nonindigenous Aquatic Species
683:Living Snakes of the World in Color
423:Reptilium Terrarium and Desert Zoo
14:
2243:Taxa named by Edward Drinker Cope
925:. United States Geological Survey
862:Uetz, P.; Hallermann, J. (2018).
685:. New York: Sterling Publishers.
90:
839:Biology of the Boas and Pythons
810:Biology of the Boas and Pythons
1083:Segal, Kim (17 January 2012).
996:IRCF Reptiles & Amphibians
545:and wide-foraging strategies.
478:and its tributaries, from the
1:
1114:Reptarium.cz Reptile Database
864:"Eunectes notaeus COPE, 1862"
1839:Acrantophis madagascariensis
391:
366:
781:The Encyclopedia of Animals
304:largest snakes in the world
2259:
2238:Reptiles described in 1862
1009:10.17161/randa.v28i2.15504
896:(in Spanish). 11 June 2010
681:Mehrtens, John M. (1987).
385:
379:
355:
333:
1925:Ungaliophis continentalis
1861:Sanzinia madagascariensis
1289:Chilabothrus chrysogaster
1158:
751:Colthorpe, Kelly (2009).
501:The taxonomic sinking of
421:Close-up of head, at the
336:Eunectes § Etymology
227:
220:
202:
195:
87:Scientific classification
85:
68:
46:
37:
28:
23:
1437:Corallus ruschenbergerii
1352:Chilabothrus strigilatus
596:Interactions with humans
470:Distribution and habitat
1268:Chilabothrus ampelophis
1116:. Accessed 4 July 2008.
1932:Ungaliophis panamensis
1523:Eunectes deschauenseei
1359:Chilabothrus subflavus
1338:Chilabothrus schwartzi
1324:Chilabothrus inornatus
1275:Chilabothrus angulifer
616:
507:Eunectes deschauenseei
449:
430:
322:and kills its prey by
244:Eunectes deschauenseei
2218:Reptiles of Argentina
1561:Calabaria reinhardtii
1345:Chilabothrus striatus
1331:Chilabothrus monensis
1310:Chilabothrus gracilis
1282:Chilabothrus argentum
1066:Herpetological Review
603:
436:
420:
288:), also known as the
2233:Reptiles of Paraguay
1832:Acrantophis dumerili
1797:Lichanura trivirgata
1620:Candoia superciliosa
1423:Corallus grenadensis
868:The reptile database
758:Animal Diversity Web
650:"Appendices | CITES"
383:is a poetic form of
231:Epicrates wieningeri
2223:Reptiles of Bolivia
1430:Corallus hortulanus
1317:Chilabothrus granti
1303:Chilabothrus fordii
443:Hluboká nad Vltavou
407:Edward Drinker Cope
290:Paraguayan anaconda
40:Conservation status
1868:Sanzinia volontany
1516:Eunectes beniensis
1473:Epicrates cenchria
1459:Epicrates alvarezi
1395:Corallus blombergi
1381:Corallus annulatus
1296:Chilabothrus exsul
919:"Eunectes notaeus"
753:"Eunectes notaeus"
626:Florida Everglades
617:
513:proposed by Rivas
503:Eunectes beniensis
450:
431:
377:'dorsal' (
263:Eunectes beniensis
16:Species of reptile
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2154:Open Tree of Life
1954:Taxon identifiers
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1790:Lichanura orcutti
1662:Charina umbratica
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1416:Corallus cropanii
1042:(in Portuguese).
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1903:Exiliboa placata
1888:
1817:
1747:Eryx sistanensis
1640:
1613:Candoia paulsoni
1606:Candoia carinata
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1537:Eunectes notaeus
1530:Eunectes murinus
1509:Eunectes akayima
1487:Epicrates maurus
1466:Epicrates assisi
1402:Corallus caninus
1388:Corallus batesii
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606:Beardsley Zoo
602:
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352:Ancient Greek
350:derives from
349:
346:
345:specific name
343:
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269:Dirksen, 2002
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197:Binomial name
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93:
88:
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78:
72:
67:
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55:Least Concern
45:
41:
36:
32:
27:
22:
19:
1961:
1930:
1923:
1913:
1901:
1891:
1866:
1859:
1849:
1837:
1830:
1820:
1795:
1788:
1778:
1766:
1759:
1752:
1745:
1738:
1731:
1724:
1717:
1712:Eryx jaculus
1710:
1705:Eryx elegans
1703:
1698:Eryx conicus
1696:
1689:
1682:
1672:
1660:
1653:
1643:
1618:
1611:
1604:
1597:
1590:
1580:
1559:
1552:Calabariinae
1536:
1535:
1528:
1521:
1514:
1507:
1497:
1485:
1478:
1471:
1464:
1457:
1447:
1435:
1428:
1421:
1414:
1407:
1400:
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1386:
1379:
1369:
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1343:
1336:
1329:
1322:
1315:
1308:
1301:
1294:
1287:
1280:
1273:
1266:
1258:Chilabothrus
1256:
1244:
1239:Boa orophias
1237:
1232:Boa nebulosa
1230:
1223:
1216:
1206:
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1088:
1078:
1069:
1065:
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999:
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867:
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756:
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718:
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710:
701:
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657:. Retrieved
653:
644:
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584:such as the
571:
551:brocket deer
547:
535:wading birds
528:
514:
510:
506:
502:
500:
473:
451:
400:
396:
347:
339:
324:constriction
320:non-venomous
289:
284:
283:
279:
277:
261:
242:
236:Steindachner
230:
205:
203:
187:
186:
174:
18:
2053:iNaturalist
1986:Wikispecies
1915:Ungaliophis
1822:Acrantophis
1812:Sanziniinae
1726:Eryx johnii
1684:Eryx borrii
1046:(1): 35–52.
1040:Biociencias
874:17 November
707:Cope, E. D.
614:Connecticut
567:Cannibalism
413:Description
73:Appendix II
2202:Categories
1572:Candoiinae
1186:Suborder:
957:(2): 127.
894:La Mochila
790:0520244060
764:3 February
659:14 January
636:References
610:Bridgeport
482:region in
439:Ohrada Zoo
312:subspecies
150:Suborder:
1780:Lichanura
1449:Epicrates
1246:Boa sigma
1188:Serpentes
1162:Kingdom:
1018:237839786
973:1424-2818
951:Diversity
654:cites.org
590:mustelids
559:peccaries
555:capybaras
429:, Germany
361:romanized
342:Neo-Latin
330:Etymology
182:Species:
154:Serpentes
110:Kingdom:
104:Eukaryota
2213:Eunectes
2180:Species+
2110:44580058
2071:10351098
1971:Wikidata
1893:Exiliboa
1851:Sanzinia
1635:Erycinae
1499:Eunectes
1371:Corallus
1182:Squamata
1176:Reptilia
1170:Chordata
1168:Phylum:
1164:Animalia
990:Eunectes
725:: 60–82.
711:Holcosus
539:Pantanal
488:Paraguay
480:Pantanal
392:nōtiaios
386:νωτιαίος
318:, it is
222:Synonyms
175:Eunectes
160:Family:
144:Squamata
134:Reptilia
124:Chordata
120:Phylum:
114:Animalia
100:Domain:
60:IUCN 3.1
2172:notaeus
2159:1072291
2045:5225710
1977:Q756281
1645:Charina
1582:Candoia
1180:Order:
1174:Class:
1150:Family
1112:at the
1023:24 July
945:2024).
900:14 June
580:, some
578:cougars
574:jaguars
531:wetland
525:Ecology
496:Florida
492:Uruguay
484:Bolivia
461:⁄
437:In the
380:νωταίος
375:
367:nōtaios
363::
356:νωταίος
348:notaeus
316:pythons
300:endemic
297:species
292:, is a
170:Genus:
140:Order:
130:Class:
75: (
58: (
2097:634803
2084:114298
2058:100714
2032:794660
1198:Boinae
1152:Boidae
1016:
971:
845:
816:
787:
715:Ameiva
689:
582:canids
563:Boidae
427:Landau
257:, 1936
255:Conant
253:&
238:, 1903
215:, 1862
164:Boidae
2146:87293
2133:51877
2117:NAS:
2066:IRMNG
2019:6GYDP
1062:(PDF)
1014:S2CID
515:et al
509:into
399:from
310:. No
77:CITES
71:CITES
2185:3622
2128:NCBI
2120:2576
2105:IUCN
2092:ITIS
2040:GBIF
1674:Eryx
1025:2021
969:ISSN
931:2016
902:2020
876:2018
843:ISBN
814:ISBN
785:ISBN
766:2016
713:and
687:ISBN
661:2022
630:IUCN
505:and
373:lit.
340:The
278:The
251:Dunn
213:Cope
2079:ISC
2027:EoL
2014:CoL
2001:ADW
1208:Boa
1090:CNN
1004:doi
959:doi
557:or
294:boa
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2167:RD
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