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Laterality ; 12(6): 536-42, 2007 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17852698

RESUMO

The direction of coiling was periodically recorded for two species of viperid snakes--copperheads (Agkistrodon contortrix) and cottonmouths (Agkistrodon piscivorus). Overall, neither species showed a significant preference for coiling in a particular direction. Only 1 of 22 snakes exhibited an individual preference, a result within expectation for random direction of coiling when using a 5% rejection level for statistical testing. A previously published claim for laterality in coiling direction by cottonmouths presented similar results but came to the opposite conclusion. The data from the combined studies suggest that if laterality in coiling direction does occur, it is extremely weak and inconsistent.


Assuntos
Comportamento Animal/fisiologia , Lateralidade Funcional/fisiologia , Serpentes/fisiologia , Agkistrodon/fisiologia , Animais
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