Catrobis (/ˌkæ.tɹoʊ.bɪs/, plural: Catrobies) — an open species created by Maddeku (AKA RattieSteps or Rattie).

Catrobies are an herbivorous, bipedal alien species that is largely feline in exception to the small hooves on their hind legs. Catrobies are exclusively female and can reproduce with each other or other mammalian species to lay eggs that spawn more near-identical catrobies. They are peaceful and friendly, have never been known to show any hostility, and have an attention span that is almost non-existent. They find humans to be adorable. Adults average a little over 2 meters in height, in part due to their long necks. They are also notable for their ridiculously big, bottom heavy body proportions seen as a testament to their fertility; possessing sizeable bellies, breasts, and butts. It is scientifically proven that Catrobies have the softest butts in the entire galaxy. A catrobis often experiences severe weight gain and bloating due to the species' 3 stomachs, poor self restraint regarding food, and allergic reactions to oxygen. The catrobis' herbivorous diet favors fruit above all, but they are willing to eat synthetic meat.