One of the fastest ducks on land in one of the one Piece worlds is Karoo.
Princess Vivi called it "running fast", which shows how fast it runs.
Its duck paws fell steadily on the ground with each foot, and the people sitting on its back did not feel much bumps, which was the strength of the duck king.
Isn't it just a duck, when did you become the duck king? Put away your contempt, and please do not underestimate Karoo, the captain of the legion of the fastest moving troops in the kingdom of Alabastan, and the mount of Princess Vivi of the kingdom of Alabastan. You know, Princess Vivi's father was plagued by Lao Sha before, and although he is getting better now, no matter what, as the king, he only has one daughter, Princess Vivi, so in the near future Neferutari. Vivi will inherit the throne of her father, the Kingdom of Alabastan.
Therefore, it is not too much to say that Karoo is the king's mount, in addition, it is a duck carrying the future One Piece, and the name of the duck king is worthy of the name.