Hive mind

A hive mind, group mind or gestalt consciousness is a collection of separate, distinct organisms with only one consciousness, meaning that the creatures are usually without individuality. The Nestenes, the Wirrn, the Ood, the Family of Blood, the Toclafane, the Isolus, the Bane and the Rutans were all hive minds (an interesting side-effect in the Rutans is that individuals refer to themselves as "we" rather than "I").