Eusocial animals express complex behaviors, like group decision-making.
Eusocial animals share several characteristics which includes: adults live in groups, cooperative care of juveniles (individuals care for brood that is not their own), reproductive division of labor (not all individuals get to reproduce), and overlap of generations.
For example; Ants, termites and many species of bees and wasps form tightly integrated social groups in which permanently nonreproducing workers help rear the offspring of a few fertile individuals, the queens and males.
