Behavioral laterality and morphological asymmetry in the cuttlefish, Sepia lycidas

Zoological Science
Nahid Sultana LuckyMichio Hori

Abstract

Behavioral laterality is widely found among vertebrates, but has been little studied in aquatic invertebrates. We examined behavioral laterality in attacks on prey shrimp by the cuttlefish, Sepia lycidas, and correlated this to their morphological asymmetry. Behavioral tests in the laboratory revealed significant individual bias for turning either clockwise or counterclockwise toward prey, suggesting behavioral dimorphism in foraging behavior. Morphological bias was examined by measuring the curvature of the cuttlebone; in some the cuttlebone was convex to the right (righty), while in others, the cuttlebone was convex to the left (lefty). The frequency distributions of an index of cuttlebone asymmetry were bimodal, indicating that populations were composed of two types of individuals: "righty" and "lefty." Moreover, an individual's laterality in foraging behavior corresponded with the asymmetry of its cuttlebone, with righty individuals tending to turn counterclockwise and lefty ones in the opposite direction. These results indicate that cuttlefish exhibit behavioral dimorphism and morphological antisymmetry in natural populations. The presence of two types of lateral morph in cuttlefish provides new information on the relation...Continue Reading

References

Jun 1, 1976·The Biological Bulletin·P V HamiltonJ G Halusky
Apr 1, 1968·Animal Behaviour·J B Messenger
Jul 15, 2003·Journal of Comparative Psychology·Miranda A KarsonRoger T Hanlon
Oct 8, 2005·The Behavioral and Brain Sciences·Giorgio Vallortigara, Lesley J Rogers
Jun 24, 2006·Animal Cognition·Christelle AlvesLudovic Dickel
Aug 4, 2006·Developmental Psychobiology·Giorgio Vallortigara
May 8, 2008·Zoological Science·Yuichi TakeuchiMichio Hori

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Citations

Apr 9, 2014·SpringerPlus·Kaori Tsuchiya, Fumio Hayashi
Jun 29, 2016·Neuroscience and Biobehavioral Reviews·A K M Rezaul KarimLora T Likova
Apr 6, 2016·Scientific Reports·Patchara DanaisawadiSomsak Panha
Aug 5, 2017·Zoological Science·Michio HoriYuichi Takeuchi

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