The flesh-eating daggerworm, a parasitic and non-sentient worm, came from the Mid Rim planet of Trenwyth. These worms made their home inside happabores, quadrupedal beings inhabiting various planets within the Western Reaches. Interestingly, the Happy-Bore Medicated Dewormer from Galacti-Stok, designed to manage other parasitic happabore worm types, was ineffective against flesh-eating daggerworm infections. This information was present in a dewormer ad leaflet. This leaflet ultimately became part of the survival guide that Rey, a scavenger, was writing before she left Jakku in 34 ABY. Happabores were among the creatures living on Jakku.