Felis Sapiens

Felis sapiens (designated Felix sapiens by Kryten's replacement Hudzen-10 in the episode The Last Day, and also by the survey party in Holoship) is a fictional, sentient, humanoid species from the Red Dwarf television series. The series generally refers to members of species simply as "cats". They are all originally descended from a single pregnant domestic cat of Titan origin named Frankenstein, which Dave Lister bought on shore leave on a colony on Titan. One cat, simply known as "The Cat", is a regular character in the show.