Localization of Octopus Drill Holes on Cowries

Autor:	Daniel Blustein, Roland C. Anderson
Rok vydání:	2016
Předmět:	0106 biological sciences Cowry biology Drill 010604 marine biology & hydrobiology Anatomy Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Drill hole Octopus Paleontology Feeding behavior biology.animal Ecology Evolution Behavior and Systematics
Zdroj:	American Malacological Bulletin. 34:61-64
ISSN:	2162-2698 0740-2783
DOI:	10.4003/006.034.0101
Popis:	Octopus localize their drill holes on prey but it remains unclear how this is accomplished. Asymmetrical prey such as snails and crabs would provide cues to the octopus but the nominally symmetrical cowry presents a unique drill hole localization scenario. To investigate how octopus drill cowries we collected their shells from octopus middens in Bonaire and surveyed drilled specimens in shell collections. Cowry drill holes were predominantly localized to the ventral-posterior-lateral region of the shell, the attachment point of the columellar muscle. Cowries with multiple drill holes suggest a trial-and-error learning process leading to localization. Further studies with naive octopuses are proposed to determine the role of learning in this feeding behavior.
Databáze:	OpenAIRE
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