The primate semicircular canal system and locomotion.
MOCA Reference, APE
Publication Type: Journal Article
Authors: Spoor, F.; Garland, T.; Krovitz, G.; Ryan, T. M.; Silcox, M. T.; Walker, A.
Year of Publication: 2007
Journal: Proc Natl Acad Sci U S A
Date Published: 06/2007
Publication Language: eng
Keywords: Animals, Ear Canal, Head, Locomotion, Motion, Phylogeny, Primates
The semicircular canal system of vertebrates helps coordinate body movements, including stabilization of gaze during locomotion. Quantitative phylogenetically informed analysis of the radius of curvature of the three semicircular canals in 91 extant and recently extinct primate species and 119 other mammalian taxa provide support for the hypothesis that canal size varies in relation to the jerkiness of head motion during locomotion. Primate and other mammalian species studied here that are agile and have fast, jerky locomotion have significantly larger canals relative to body mass than those that move more cautiously.
Alternate Journal: Proc. Natl. Acad. Sci. U.S.A.
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