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. 2012 Oct 10;7(10):e46950. doi: 10.1371/journal.pone.0046950

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© 2012 Tickle et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Rate of carbon dioxide production () plotted for the barnacle geese during sitting and standing. The of the geese was higher when standing (24.55 ml min⁻¹±1.96) than sitting (19.62 ml min⁻¹±1.44), indicating that sitting is metabolically cheaper.

Inline graphic — Rate of carbon dioxide production () plotted for the barnacle geese during sitting and standing. The of the geese was higher when standing (24.55 ml min⁻¹±1.96) than sitting (19.62 ml min⁻¹±1.44), indicating that sitting is metabolically cheaper.