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Experiment 2. The relationship between colony size and the number of active ants that left the old nest in the period between 5 and 20 min after the old nest had been opened. The relationship is best described by active scouts=5.95+0.3795 (colony size) (r2=0.77, p<0.001). The central line is the fitted regression line; also shown are the 95% confidence limits for this line and for the dataset. One outlier has been removed.
