Post
Region: The East Pacific
I mean, you could say that a Imperial scientific black site that was in an astroid field had a bunch of rancors in a habitat, perpetually fighting, killing, and breeding to make the strongest rancor possible via natural selection and Imperial genetic tinkering.
Or not that, and just a "regular" imperial black site with a bunch of rancor habitats.
An entire planet of rancors, however....
Would be hard due to rancor poachers and what not.