The Lurker was introduced in Brood War. It can be mutated from a Hydralisk, and is capable of causing great amounts of damage. The Lurker must burrow in order to attack, but its subterranean spikes draw out a line of destruction that can hit many small units at once. Terran infantry and base workers are especially vulnerable to the Lurker's attacks.
One of the newer and deadlier Zerg Strains is the Lurker. These creatures serve as defensive warriors for the Hive Clusters and outlying Zerg colonies. Bred from the Hydralisk strain, Lurkers emit waves of super-dense spines against their enemies, each wave having a full width of ten meters. However, Lurkers must actually Burrow underground to release these subterranean attacks. Any warriors on the surface who are caught by these spines are instantly impaled. These spines themselves are capable of tearing into flesh, steel, and even reinforced armor plating. The only weakness of the Lurker is that it is virtually defenseless while above ground.
|| Burrow (Lurker SC1) 
| Used by || Lurker (SC1)
| Conceals the unit underground, making it invisible, immobile, and able to attack.
The Lurker's StarCraft 2 model
is back in StarCraft 2 and has not seen too many changes. The main difference is that now it requires the Hydralisk Den
to evolve into a Lurker Den
in order to be produced. It now also causes slightly less damage in general, 15 as opposed to 20, but can cause double damage against Armored