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Unique arm-flapping behavior of the pharaoh cuttlefish, Sepia pharaonis: putative mimicry of a hermit crab

Unique arm-flapping behavior of the pharaoh cuttlefish, Sepia pharaonis: putative mimicry of a... Cephalopods are able to control their arms sophisticatedly and use them for various behaviors, such as camouflage, startling predators and hunting prey. Here, we report a previously undescribed arm-flapping behavior of the pharaoh cuttlefish, Sepia pharaonis, observed in captivity. S. pharaonis raised the first pair of arms and wrinkled the parts near the distal end, where the skin color was darkened. Additionally, S. pharaonis spread the second and third pairs of arms and bent them as if they were jointed, and flapped the distal ends. S. pharaonis showed this behavior in two different situations: after being introduced into a large space, and during hunting. We discuss the putative functions of this behavior, including possible mimicry of a hermit crab, considering the situations in which the behavior was observed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Ethology Springer Journals

Unique arm-flapping behavior of the pharaoh cuttlefish, Sepia pharaonis: putative mimicry of a hermit crab

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References (34)

Publisher
Springer Journals
Copyright
Copyright © 2017 by Japan Ethological Society and Springer Japan
Subject
Life Sciences; Zoology; Behavioral Sciences; Animal Ecology; Evolutionary Biology
ISSN
0289-0771
eISSN
1439-5444
DOI
10.1007/s10164-017-0519-7
Publisher site
See Article on Publisher Site

Abstract

Cephalopods are able to control their arms sophisticatedly and use them for various behaviors, such as camouflage, startling predators and hunting prey. Here, we report a previously undescribed arm-flapping behavior of the pharaoh cuttlefish, Sepia pharaonis, observed in captivity. S. pharaonis raised the first pair of arms and wrinkled the parts near the distal end, where the skin color was darkened. Additionally, S. pharaonis spread the second and third pairs of arms and bent them as if they were jointed, and flapped the distal ends. S. pharaonis showed this behavior in two different situations: after being introduced into a large space, and during hunting. We discuss the putative functions of this behavior, including possible mimicry of a hermit crab, considering the situations in which the behavior was observed.

Journal

Journal of EthologySpringer Journals

Published: May 22, 2017

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