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This article concerns unit lore. You may be looking for:
The hydralisk is the zerg basic front-line creature, forming the backbone of their onslaughts with its resistant carapace and ranged spine attack.
The hydralisk is a zerg evolution of the slothien. While slothiens were peaceful herbivores, the hydralisk is noted as being one of the most fierce and sadistic of the zerg strains. Hydralisks are a versatile combat strain, and form the backbone of the Swarm, acting as shock troops. To terrans, hydralisks symbolize the Swarm's power more than any other strain.
Nope! Tried it!"
Hydralisks are covered in armored plates. The average hydralisk in 2499 was 5.4m long and weighed 390 kg. The hydralisks of this era were smaller and leaner than the creatures that would follow them, which also possess tri-bladed scythes instead of the single ones used by the hydralisks of the Great War and Brood War. Despite their relatively sluggish nature, hydralisks can climb vertical surfaces and continued evolution of the strain through muscular augmentation through genetic manipulation has resulted in faster hydralisks, increasing their locomotion by up to 25%, both on and off creep.
The hydralisk's endocrine and adrenal were altered as part of their evolution. The chemicals pumped into their bloodstream effectively force them to live in a perpetual "fight response." Some hydralisk variants seem to be able to overcharge their specialized endocrine system, substantially increasing aggression and savagery. As the backbone of the Swarm, hydralisks are subject to constant evolutionary improvement.
Prior to the beginning of the Brood War, hydralisks gained the ability to mutate into lurkers. Hydralisks changed drastically in the transition to the Second Great War, and evolved more bone claws as well as a bulkier figure.
Since hydralisks move relatively slowly over open terrain, it is common for hydralisks to burrow and await their prey to enter killing range before attacking, destroying their enemies in a deadly crossfire. Current terran tactics for dealing with the creatures stress the need for siege tank support, and are only to be approached by trained soldiers.
Hydralisks may attack directly with tri-bladed scythes Grown from the relatively soft ribs of the slothien, they were hardened through genetic manipulation. The high-density bone blades are connected to a set of fast-twitching, striated muscles, which allow for great striking power with a modest range of motion, deadly even in restricted mobility scenarios such as tight corridors or trenches. More commonly though, hydralisks strike from a distance with volleys of armor-piercing spines, 30cm in length, and is their deadlier form of attack. Hundreds of these spines are stored in the upper carapace plates and covered by flaps. The flaps fold back before the spines fire, and the hydralisk's head is dipped beforehand. These physical signs give a hydralisk's foes a few seconds warning before they launch their volley.
The hydralisk has 4,000 muscles, compared to a terran's 629, and a portion of these may be used to launch the spines with enough force to penetrate 2 cm. of neosteel at a range of over 300 meters or even half a kilometer at a velocity greater than that of the C-20A rifle, moving at near hypersonic speeds. The spines were evolved from the slothien's defensive urticating hairs; they may be "grooved" for increased range and are highly poisonous.
The hydralisk may also use its jaw as a weapon. With an estimated bite force of 5000 pounds per square inch, the hydralisk's jaw can easily cut through flesh, bone, and even neosteel.
The first recorded encounter between terrans and hydralisks was aboard a cargo vessel. The hydralisk was recorded by the derelict ship's security cameras. Since then, hydralisks have established themselves in terran culture to a notable extent. Sometimes colloquially called "hydras," hydralisk skulls have been mounted akin to trophies in Joeyray's Bar and on an ore loader on Sorona. The Annual Hydralisk Derby has also become an established event.
Project Tamed was a Dominion project that attempted to use controlled hydralisks as living weapons, but it backfired, as the control was feigned, and they had in actual fact never been removed from the control of the Queen of Blades.
- For StarCraft gameplay information see: Hydralisk (StarCraft).
This article or section contains information about StarCraft: Ghost, which has been declared non-canon. Elements may be taken as 'flavor lore' however.
Hydralisks were featured as a player unit in StarCraft: Ghost, in addition to acting as enemies. Hydralisks maintained their StarCraft abilities but also gained a powerful claw attack. Their poison quill attack interfered with terran vision. They moved more slowly than zerglings.
In Invasion mode, transforming a zergling into a hydralisk cost one point.
- For StarCraft II gameplay information see: Hydralisk (StarCraft II)
The hydralisk appears as an Easter egg unit in Warcraft III and its expansion, The Frozen Throne.
Heroes of the Storm
- Chitha (aka psyolisk)
- Hunter Killer
- Hydolysk (cut content)
- Primal hydralisk
- Temple Guardian
- Zergrinch Warg
- A hydralisk action figure was released in 1998.
- The hydralisk is often nicknamed "hydra" in online culture.
- A hydralisk bottle cap figure from Kotobukiya is available.