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What are the consequences of being left-clawed in a predominantly right-clawed fiddler crab?

Backwell, Patricia; Matsumasa, M.; Double, Michael; Roberts, Alexander; Murai, Minoru; Keogh, J Scott; Jennions, Michael


Male fiddler crabs (genus Uca) have an enlarged major claw that is used during fights. In most species, 50% of males have a major claw on the left and 50% on the right. In Uca vocans vomeris, however, less than 1.4% of males are left-clawed. Fights between opponents with claws on the same or opposite side result in different physical alignment of claws, which affects fighting tactics. Left-clawed males mainly fight opposite-clawed opponents, so we predicted that they would be better fighters...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Proceedings of the Royal Society of London Series B: Biological Sciences
DOI: 10.1098/rspb.2007.0666


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