Activity and sleep in dolphins

Guido Gnone (), Tiziana Moriconi and Giorgia Gambini
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Guido Gnone: Acquario di Genova, Area Porto Antico Ponte Spinola
Tiziana Moriconi: Acquario di Genova, Area Porto Antico Ponte Spinola
Giorgia Gambini: Acquario di Genova, Area Porto Antico Ponte Spinola

Nature, 2006, vol. 441, issue 7096, E10-E11

Abstract: Abstract Arising from: O. Lyamin, J. Pryaslova, V. Lance & J. Siegel Nature 435, 1177 (2005); see also communication from Sekiguchi et al .; Lyamin et al. reply . According to Lyamin and co-authors, neonate bottlenose dolphins (Tursiops truncatus) almost never sleep, unlike all other mammals that have been studied1. Although we agree that young dolphins never stop and float at the surface, we find that they spend a considerable amount of time asleep while swimming. Our findings therefore call into question the conclusions of Lyamin et al.1.

Date: 2006
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DOI: 10.1038/nature04899

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