According to Abathur, the primals stole the hydralisk's essence from the Swarm shortly after Kerrigan's arrival on Zerus, and used it to produce their own hydralisks.[1][2] They were among the first of the Swarm zerg breeds to be adapted into the primal zerg genome, and the evolutionary strength of the hydralisk's essence meant that many of their traits were retained amongst the primals.
Some primal hydralisks develop mutations that exhibit an increasing number of lurker traits, with many resembling more lurker than hydralisk.[3]
Game Unit[]
Primal hydralisks are very similar in appearance to normal hydralisks, though they are slightly larger and have greenish-gray carapaces. In the Heart of the Swarm single player campaign, their stats are almost identical to those of their Swarm counterparts.
Primal hydralisks in Co-op Missions have more health than their Swarm counterparts.
Heart of the Swarm[]
Primal hydralisks appear as enemies, and later allies on Zerus.[4] They also appear as part of Dehaka's pack during the attack on Korhal.[5]
Kerrigan, in her Primal Queen of Blades form, can summon sacs containing a group of primal zerg consisting of primal zerglings, primal hydralisks, and primal roaches.[6]
A primal hydralisk skin is available in multiplayer for reaching level 2 with the zerg Katowice 2018 War Chest.[3]
In the Heart of the Swarm campaign, primal hydralisks will appear as enemies during the Zerus missions even if the player has not yet visited Kaldir and gained the ability to produce hydralisks.[4] Furthermore, the conversation with Abathur, during which he complains about the primals stealing hydralisk essence, is unchanged.[2]
