Spore colony

The Spore Colony is the Zerg means of aerial defense. Able to fling Seeker Spores high into the atmosphere, Spore Colonies can quickly ravage any incoming enemy air force. In addition to its anti-air capabilities, the Spore Colony also serves as a stationary detector against any enemy cloaked or burrowed units. Combined with the Sunken Colony, the Spore Colony can be a very strong deterrent against any invasion.