Document Detail

Octopuses (Enteroctopus dofleini) recognize individual humans.
MedLine Citation:
PMID:  20563906     Owner:  NLM     Status:  MEDLINE    
This study exposed 8 Enteroctopus dofleini separately to 2 unfamiliar individual humans over a 2-week period under differing circumstances. One person consistently fed the octopuses and the other touched them with a bristly stick. Each human recorded octopus body patterns, behaviors, and respiration rates directly after each treatment. At the end of 2 weeks, a body pattern (a dark Eyebar) and 2 behaviors (reaching arms toward or away from the tester and funnel direction) were significantly different in response to the 2 humans. The respiration rate of the 4 larger octopuses changed significantly in response to the 2 treatments; however, there was no significant difference in the 4 smaller octopuses' respiration. Octopuses' ability to recognize humans enlarges our knowledge of the perceptual ability of this nonhuman animal, which depends heavily on learning in response to visual information. Any training paradigm should take such individual recognition into consideration as it could significantly alter the octopuses' responses.
Roland C Anderson; Jennifer A Mather; Mathieu Q Monette; Stephanie R M Zimsen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of applied animal welfare science : JAAWS     Volume:  13     ISSN:  1532-7604     ISO Abbreviation:  J Appl Anim Welf Sci     Publication Date:  2010  
Date Detail:
Created Date:  2010-06-21     Completed Date:  2010-09-27     Revised Date:  2012-05-07    
Medline Journal Info:
Nlm Unique ID:  9804404     Medline TA:  J Appl Anim Welf Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  261-72     Citation Subset:  IM    
The Seattle Aquarium, Seattle, Washington, USA.
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MeSH Terms
Behavior, Animal*
Movement / physiology
Octopodiformes* / physiology
Recognition (Psychology)* / physiology
Respiratory Rate / physiology
Visual Acuity / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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