Rat King (Teenage Mutant Ninja Turtles) cameo appearance in "Teenage Mutant Ninjas Turtles" Vol. 4, watching as Splinter succumbs to a heart attack and dies while retrieving milk from a refrigerator. Much of the Rat King's origin is later revealed in an issue of "Tales of the Teenage Mutant Ninja Turtles" Vol. 2; the story reveals that a group of beings known as the Pantheon exists, with each member of the group having jurisdiction over a species of animal. When the time of the Pantheon member who rules the rats reaches an end, a new one is chosen, a scarred and heavily bandaged (explaining the Rat
Brown rat as Hairless or Rex, and more recently developed variations in body size and structure, including dwarf and tailless fancy rats. A working rat is a rat trained for specific tasks as a working animal. In many cases, working rats are domesticated brown rats. However, other species, notably the Gambian pouched rat, have been trained to assist humans. Jensen, J.-K. & Magnussen, E. 2015. Occurrence of fleas (Siphonaptera) and lice (Phthiraptera) on Brown rats ("Rattus norvegicus") on the Faroes Islands. Norwegian Journal of Entomology 62, 154-159. Overviews "Rattus norvegicus" genome and use as model animal Brown rat The brown rat ("Rattus