Division of labor in the hyperdiverse ant genus Pheidole is associated with distinct subcaste- and age-related patterns of worker brain organization.

Results and Discussion Pheidole worker subcastes, age groups, and species have distinct brain architectures Multivariate discriminant analysis revealed highly significant gross neuroanatomical differentiation among our 12 worker groups (Wilks' Λ = 4×10 −4 , p <0.0001).

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