Queens are sapient beings. The queen's brain is encased in an armored skull, and connected to a set of nerve cords that bear resemblance to those possessed by protoss. The queen's brain gives it great mental capabilities, but these queens have severe limits to their mental flexibility (unlike broodmothers), and have limited independent thought and analysis. They play a limited command role in nurturing zerg nest sites. In leadership roles, they oversee hives and easily coordinate lesser strains. Queens can evolve and grow through experience, and can analyze and relay any tactical data fed to them by overlords. Queens generally can't communicate verbally, but have been observed to converse with other species psionically.