Brain crawler

Brain crawlers were a type of parasitic worm whose homeworld was Cheelit in the Mid Rim. They could infest the brains of members of the domesticated happabore species, which could be found on planets throughout the Western Reaches. The instruction manual for the slurry formulation of Galacti-Stok's Happy-Bore Medicated Dewormer—a product containing Trestibinexocycline 5-Gamma, thlank oil, greel-root acid, and forage products—recommended that the dewormer not be used to treat brain crawler infestations. The scavenger Rey found a copy of the instructions while living on the desert planet Jakku and included them in a survival guide that she had compiled by 34 ABY.

Text and facts from the “Brain crawler” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.