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. 2009 May 4;106(20):8251–8255. doi: 10.1073/pnas.0901270106

Fig. 4.

Fig. 4.

Box plots of retrieval times for pupae treated with the dolichodial/iridomyrmecin (Dol+Irid) fraction or solvent controls. Five pupae were observed in each replicate until all had been removed. Workers took longer to retrieve pupae treated with Dol+Irid than solvent-treated controls (Wilcoxon rank-sum test: z = 4.96, P < 0.0001).