44:
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473:, Indonesia, and is likely the first evidence of tool use in invertebrates. Other species of octopus had been observed using shells for hiding, but this was the first case in which shells were prepared and collected for later use, in what the Melbourne Museum has described as "true tool use". Octopi will often engage in bipedal motion when carrying stacks of debris or items larger than themselves.
373:
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for concealment and defense by gathering available debris to create a shelter. The researchers filmed the octopus collecting coconut half-shells from the sea floor that had been discarded by humans. They were then carried up to 20 meters (66 ft) and arranged around the body of the octopus to
525:
The species prefers shallow, subtidal waters along the continental shelf. The species has a maximum depth of 190 metres (620 ft), and can often be found in mud and sand substrates.
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is normally 8 centimeters (3 in) long and including the arms, approximately 15 centimeters (6 in) long. The octopus displays a typical color pattern with dark
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517:. While the species may be threatened by fishing, it's wide distribution is seen as enough to compensate against human impacts.
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Finn, Julian K.; Tregenza, Tom; Norman, Mark D. (2009), "Defensive tool use in a coconut-carrying octopus",
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locomotion, or "stilt-walking". This involves rolling two legs to walk while the other six legs are used to
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crabs and bivalves. Eggs are laid in clutches of 100,000 and are 3 millimetres (0.12 in) in length.
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form a spherical hiding place similar to a clam-shell. This behavior was observed in specimen in
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is one of only two octopus species known to display such behavior, the other species being
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315:
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964:
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627:"WoRMS - World Register of Marine Species - Amphioctopus marginatus (Taki, 1964)"
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Octopuses occasionally stroll around on two arms, UC Berkeley biologists report
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17:
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793:"A tool-wielding octopus? This invertebrate builds armor from coconut halves"
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Small (4–5 cm diameter) individual using a nutshell and clam shell as shelter
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721:"Indonesia's veined octopus 'stilt walks' to collect coconut shells"
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but this name was not recognized as taxonomically valid.
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Underwater
Bipedal Locomotion by Octopuses in Disguise
699:
Christine L. Huffard, Farnis Boneka, Robert J. Full:
420:. This behavior was first observed off the coast of
320:
The species was first described in 1964 by
Japanese
893:
291:shells and seashells and using these for shelter).
360:are usually dark in color, with contrasting white
27:Species of cephalopod known as the coconut octopus
659:"Aussie scientists find coconut-carrying octopus"
267:. It is found in tropical waters of the western
352:lines similar to veins, usually with a yellow
869:Video using 2 sea shells as a defense shelter
846:National Center for Biotechnology Information
566:10.2305/IUCN.UK.2018-2.RLTS.T163176A980445.en
8:
586:: CS1 maint: multiple names: authors list (
881:
481:The coconut octopus is broadly endemic to
61:
42:
31:
759:
564:
428:, where coconut shell litter is common.
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661:. The Associated Press. Archived from
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795:. Scientific American. Archived from
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1121:ABE588F4-CFED-42BF-87B0-1C95F1702FE5
1082:FD2DF1B7-A533-37EF-3693-87E38FC32A55
652:
650:
648:
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603:
601:
599:
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1144:IUCN Red List least concern species
823:"CephBase: Amphioctopus marginatus"
552:IUCN Red List of Threatened Species
495:Northwest and Western Pacific Ocean
380:The species preys predominately on
332:In 1976, Z. Dong named the species
688:University of California, Berkeley
541:Allen, G & Allcock, L (2018).
396:University of California, Berkeley
394:In March 2005, researchers at the
25:
791:Harmon, Katherine (2009-12-14).
657:Gelineau, Kristen (2009-12-15).
86:
723:. Times Online. Archived from
719:Henderson, Mark (2009-12-15).
452:In 2009, researchers from the
1:
1164:Cephalopods described in 1964
460:observed the coconut octopus
864:Guardian article with video
1180:
445:
398:, published an article in
836:- Video via EducatedEarth
761:10.1016/j.cub.2009.10.052
609:"Amphioctopus marginatus"
485:, tropical waters in the
271:. It commonly preys upon
214:
207:
188:
181:
83:Scientific classification
81:
59:
50:
41:
34:
330:Amphioctopus marginatus.
1159:Taxa named by Iwao Taki
939:Amphioctopus_marginatus
925:Amphioctopus marginatus
895:Amphioctopus marginatus
875:Amphioctopus marginatus
545:Amphioctopus marginatus
503:Amphioctopus marginatus
448:Cephalopod intelligence
300:Amphioctopus marginatus
261:belonging to the genus
246:Amphioctopus marginatus
192:Amphioctopus marginatus
36:Amphioctopus marginatus
859:BBC article with video
615:. IUCN Red List. 2014.
377:
877:on Sealife Collection
834:Octopus uses coconuts
631:www.marinespecies.org
408:was reported to show
375:
344:The main body of the
665:on December 18, 2009
559:: e.T163176A980445.
414:mimic the appearance
340:Size and description
328:and synonymously as
257:, is a medium-sized
249:, also known as the
752:2009CBio...19R1069F
746:(23): R1069–R1070,
727:on August 15, 2011.
499:Southeast Asian Sea
368:Behavior and habits
326:Octopus marginatus,
53:Conservation status
1154:Tool-using animals
841:Octopus marginatus
378:
334:Octopus striolatus
227:Octopus striolatus
218:Octopus marginatus
174:A. marginatus
1131:
1130:
1064:Open Tree of Life
887:Taxon identifiers
709:, March 25, 2005.
690:, March 24, 2005.
682:Sanders, Robert:
435:Abdopus aculeatus
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16:(Redirected from
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454:Melbourne Museum
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306:located in the
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251:coconut octopus
236:coconut octopus
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829:on 2005-08-17.
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814:External links
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471:North Sulawesi
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416:of a floating
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255:veined octopus
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234:veined octopus
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18:Veined Octopus
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799:on 2009-12-17
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507:Least Concern
505:is listed as
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430:A. marginatus
427:
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406:A. marginatus
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324:Iwao Taki as
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269:Pacific Ocean
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183:Binomial name
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68:Least Concern
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827:the original
801:. Retrieved
797:the original
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725:the original
714:
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667:. Retrieved
663:the original
634:. Retrieved
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582:cite journal
570:. Retrieved
556:
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487:Indian Ocean
480:
477:Distribution
451:
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322:malacologist
316:Amphioctopus
314:
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264:Amphioctopus
262:
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191:
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173:
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161:Amphioctopus
160:
35:
29:
1149:Octopodidae
1090:SeaLifeBase
999:iNaturalist
919:Wikispecies
740:Curr. Biol.
311:Octopodidae
287:(gathering
150:Octopodidae
130:Cephalopoda
1138:Categories
873:Photos of
803:2009-12-15
669:2009-12-15
636:2023-12-28
529:References
462:uses tools
446:See also:
390:Locomotion
259:cephalopod
231:Dong, 1976
222:Taki, 1964
458:Australia
426:Indonesia
404:in which
168:Species:
106:Kingdom:
100:Eukaryota
1017:11799850
904:Wikidata
778:26835945
770:20064403
515:Red List
442:Tool use
422:Sulawesi
350:ramified
313:, genus
295:Taxonomy
285:tool use
209:Synonyms
200:Iw. Taki
146:Family:
140:Octopoda
120:Mollusca
116:Phylum:
110:Animalia
96:Domain:
73:IUCN 3.1
1116:ZooBank
991:5856039
910:Q139978
748:Bibcode
706:Science
572:7 March
521:Habitat
509:on the
491:Red Sea
483:neritic
418:coconut
410:bipedal
401:Science
383:Calappa
362:suckers
346:octopus
304:octopus
289:coconut
202:, 1964)
156:Genus:
136:Order:
126:Class:
71: (
1108:534099
1069:893890
1056:534099
1043:505397
1030:163176
1004:469640
978:591422
952:201036
848:(NCBI)
776:
768:
497:, and
356:. The
354:siphon
308:family
279:, and
273:shrimp
1103:WoRMS
1095:57999
1077:Plazi
1012:IRMNG
774:S2CID
281:clams
277:crabs
1051:OBIS
1038:NCBI
1025:IUCN
986:GBIF
965:D465
947:BOLD
853:News
766:PMID
588:link
574:2023
557:2018
511:ICUN
469:and
467:Bali
358:arms
253:and
973:EoL
960:CoL
934:AFD
844:at
756:doi
561:doi
513:'s
456:in
1140::
1118::
1105::
1092::
1079::
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921::
906::
772:,
764:,
754:,
744:19
742:,
703:,
686:,
645:^
629:.
611:.
596:^
584:}}
580:{{
555:.
549:.
501:.
493:,
489:,
438:.
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275:,
806:.
781:.
758::
750::
672:.
639:.
590:)
576:.
563::
547:"
543:"
318:.
198:(
75:)
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
