the study about the #social wasp Mischocyttarus mexicanus shows "that the #age of the individual, and of the colony, defines the costs and benefits of #accepting new members into a group", "If non-nestmates are accepted, they may either become a worker in the colony or instead attempt to #take_over the reproductive-dominant role, steal, or #cannibalize the colony's offspring" https://en.wikipedia.org/wiki/Mischocyttarus cc @question