Wolverine (birth name: James Howlett; colloquial: Logan, Weapon X) is a fictional character appearing in American comic books published by Marvel Comics, mostly in association with the X-Men. He is a mutant who possesses animal-keen senses, enhanced physical capabilities, powerful regenerative ability known as a healing factor, and three retractable claws in each hand. Wolverine has been depicted variously as a member of the X-Men, Alpha Flight, and the Avengers.