The Quarren are an industrious and technologically advanced species indigenous to the planet Quarra, located in the Delta Quadrant. Their ships utilize warp technology and tractor beams, and the Quarren are also known for their use of subspace mines. Quarren-inhabited systems surprisingly require a high level of supervision and involve little automation, which is unique amongst the warp capable species. Likely because of this, their species make use of a multi-species workforce, with a number of workers being acquired by less scrupulous employers through abduction, as their homeworld of Quarra suffer from severe manpower shortage. To make their captive workers more productive and less likely to attempt escape, the Quarrens use memory alteration technology.