X-Men: Evolution is a U.S. animated TV show centered around the superhero group X-Men from Marvel Comics. In this version, most of the characters are depicted as teenagers instead of adults. The show aired for four seasons, starting in November 2000 and concluding in October 2003 on Kids’ WB. This makes it the third longest-running animated series based on Marvel Comics, following the X-Men and Spider-Man series on Fox Kids. It started airing on Disney XD on June 15, 2009.