Pet

A pet is a domesticated animal that often accompanies a master.

Role and Abilities
A pet's primary purpose is to provide companionship to their master, usually by loyally following them around. They might be intelligent enough to assist their owners with everyday tasks such as guarding property, give transportation (if big enough to act as a steed) or just serve as emotional support.

Certain pets are adapted to combat and may be a powerful asset for those who employ them in battle, intimidating or directly attacking their opponents. Surume, for example, is an enormous kraken who can easily destroy any ship or enemy group in its vicinity. Some pets were once normal objects that were granted sentiency through a Zoan Devil Fruit, allowing them to be wielded by their owners and act as living weapons.

Pets in pirate crews are often considered low-priority targets for the World Government, thus in the rare case a pet is issued a bounty, it's usually of an extremely low amount. This approach is highly flawed though, as capable, sentient fighters such as Tony Tony Chopper of the Straw Hat Pirates and Bepo of the Heart Pirates may be mistaken as pets due to their animal-like appearance, meaning their bounties might not reflect their true threat level.