Rocket Raccoon is a main character in Guardians of the Galaxy and a character in Guardians of the Galaxy. Rocket is a genetically modified raccoon (however, he had no idea what a raccoon was) became a guardian of the Galaxy after saving Xandar from Ronan the Accuser.
Rocket was generically modified by scientists who didn't care what happened to their experiments. At some point meets a female otter named Lylla and another creature named Groot.