The zantar slug of Garxxax was a carbon-based,[1] resilient organism, capable of quickly healing maimed or damaged tissue by absorbing nutrients from the soil.[2] This was made possible by their metabolism, to the extent that a zantar slug severed in two could stitch itself back together. They were small enough to fit into a terran's boot. They secreted acidic mucus,[1] which could be used as a form of attack, strong enough to penetrate neosteel.[2] They were not sapient, but possessed strong survival instinct.

In 2501,[1] they were assimilated into the Zerg Swarm, becoming the roaches. The roach inherited its acidic abilities.[2] Abathur later used the similarities between the unassimilated slug and the roach as the basis for a mutation for the roach that allowed its acid saliva to better dissolve poorly armored foes.[3]


  1. 1.0 1.1 1.2 Johnston, Antony. "“Acid Burns”." (April 18, 2013). Blizzard Entertainment. StarCraft Lore: Acid Burns Accessed 2013-04-18.
  2. 2.0 2.1 2.2 Blizzard Entertainment staff. 2010-07-24. Units: Roach. Blizzard Entertainment. Accessed 2014-08-20.
  3. Blizzard Entertainment. StarCraft II: Heart of the Swarm. (Activision Blizzard). PC. Evolution pit units (in English). 2013.