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Fig. 2 | BMC Zoology

Fig. 2

From: Brain investment under colony-level selection: soldier specialization in Eciton army ants (Formicidae: Dorylinae)

Fig. 2

a The ratio of total brain volume to body size (head capsule volume) plotted against head capsule volume for workers (gray symbols) and soldiers (white symbols) of eight species of Eciton army ants. The symbol shapes used to plot the data points for each species are indicated in the legend. b Total brain volume (normalized, relative to species maximum value) plotted against head capsule volume (normalized, relative to species maximum value) for workers (gray symbols) and soldiers (white symbols) of eight species of Eciton army ants. Species symbols for data points as in (a)

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