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Biol Lett. 2012 February 23; 8(1): 160.
Published online 2011 May 4. doi:  10.1098/rsbl.2011.0376
PMCID: PMC3259945

Variation in chimpanzee ‘culture’ is predicted by local ecology, not geography

Biol. Lett. (Published online 4 May 2011) (doi:10.1098/rsbl.2011.0376)

Shortly after our above paper was published in Biology Letters, we discovered several coding errors in the dataset we analysed. After re-analysing a corrected dataset, we did not find the same results as in our publication. In contrast, we found that no ecological variable was a statistically significant predictor of behavioural variation. Consequently, we do not feel that the main result of our publication is valid and have requested retraction of this manuscript.

Jason M. Kamilar

Department of Anthropology and Yale Molecular Anthropology Laboratory, Yale University, New Haven, CT 06520, USA, ude.elay@ralimak.nosaj

Joshua L. Marshack

Department of Anthropology, Washington University, St Louis, MO 63130, USA

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