Tony Tony Chopper is the doctor of the Straw Hat Pirates. Chopper is a reindeer that ate a Devil Fruit called the Hito Hito no Mi. He comes from Drum Island, which makes him the only member of the Straw Hat Pirate Crew who was born on the Grand Line. He is the sixth member of the crew and the fifth to join Luffy, as well as being the youngest member on board. He has a bounty of 50 due to being mistaken for the crew's pet.
↑SBSOne Piece Manga — Vol. 19,
fan question: I've been wondering, how old are Vivi and Chopper?
↑One Piece Manga and Anime — Vol.
61 Chapter 598 and Episode 517,
two years pass in the storyline.
↑SBSOne Piece Manga — Vol. 16,
fan question: What are Vivi-chan and Chopper's birthdays? Are they February 2nd for Vivi and December 24th for Chopper?
↑One Piece Manga and Anime — Vol.
45 Chapter 435 and Episode 324,
the crew's bounties for attacking Enies Lobby are revealed.