Cubigs are heavily modified porcine species developed in the gene labs of the Protostar Corporation. Engineered for maximum docility, flavor, and weight, they have also been designed in a roughly cubical shape that allows for easy stacking. Cubigs are a source of many fine Protostar food products, the most popular of which is Protostar Cubacon. Males are called cuboars, while females (which are much rarer, due to their origins in cloning facilities) are simply called cubig sows.
Scanbot data shows the rate of mutation in Protostar's genetically modified male cubigs has increased markedly since the creatures were brought to Nexus. Though intended to increase growth and metabolic rates, allowing for larger cuboars which reach maturity more quickly than before, the forced mutations have only half-worked. Though the size of the mutated cuboars has indeed increased and they do reach maturity much more quickly, they have also become extremely aggressive toward other life forms, even other cubigs.
Most cubigs are produced in Protostar cloning laboratories, and by default are usually male. In rare instances, a female cubig sow will emerge from the cloning process, only to be re-purposed to create additional clone source material. On the planet Nexus, however, cubig sows appear in greater numbers, and many have escaped into the wild with cuboar mutants. There they have begun active wild breeding populations. This means Nexus is the only planet in the known universe where wild cubigs run free.