Analysis of information sources in references of the Wikipedia article "Personnages de StarCraft" in French language version.
« Daggoth is dead, along with the rest of the cerebrates. Kerrigan is the sole power behind the Swarm now. It’s possible that Daggoth could not sustain himself without the Overmind and other cerebrates to power him. We’ve suggested before that the Overmind and its cerebrates were symbiotically linked. The cerebrates were not designed to exist without their creator. That’s a partial reason behind the cerebrates’ merging into a new, singular Overmind during the early events of Brood War. »