Gamespy has just published Allen Rausch’s preview of the Zerg in Starcraft II.

One of the key elements in the re-design of the Zerg is the understanding that the Zerg do not use “technology” as humans understand the term. Zerg build nothing nor do they truly create anything. Instead the Zerg use a sort of self-directed evolutionary process to shape their bodies into whatever they need. As such, the first new element we saw was the reordering of Zerg base defenses. Instead of using drone units to “build” base defenses, drones are now solely used as resource extractors and to evolve into either higher-level units or actual buildings. Base defense is now in the hands of a brand-new Zerg super-unit — the Queen.