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Pankiw T, Page RE Jr.Pankiw T, et al.J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2003 Sep;189(9):675-84. doi: 10.1007/s00359-003-0442-y. Epub 2003 Aug 7.J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2003.PMID: 12879351