Ychna

Ychna were massive bioengineered non-sentient space slug-like creatures that had a mouth over eighty meters in width. Long enough to coil around an orbital city, ychna were used during the Yuuzhan Vong War by the sentient Yuuzhan Vong species to mainly assault space stations and other orbital structures. One was deployed in 26 ABY over the planet of Duro, where it practically ate the orbital city of Orr-Om. In the last year of the war, another was part of an attack on Caluula Station.

Biology and appearance
Bioengineered by the sentient Yuuzhan Vong species, ychna were massive creatures that resembled space slugs. They possessed a wedge-shaped head with a mouth over eighty meters in width, and had a pouch that over its blow hole that clung to its dorsal area, which Jedi Knight Mara Jade Skywalker suspected was for life support. The mouth of the ychna was incredibly powerful, and could easily crush the metal of space stations. Ychna also had a think hide, allowing them to survive in vacuums, and had the capacity to suck every bit of energy out that a space station's deflector shield generator could produce. Ychna sometimes had to rely on gravity-manipulating dovin basals to tow them into position in a vacuum. Despite being long enough to wrap around an orbital city, a ychna could be killed if a proton torpedo was launched into its mouth.

Behavior
Used to attack space stations and other orbital platforms, ychna would gorge on their targets and fatten themselves. They would sometimes rip parts of a station off and eat the bits that they had separated from the superstructure. Ychna would also occasionally go after enemy starships that flew near them.

Behind the scenes
On pages 136 and 161 of The Unifying Force, ychna is misspelled as yncha.

Appearances

 * Balance Point
 * The Unifying Force