Wharf Rat
Source: Pet Battle. Just like the rough and tumble sailors who live dockside, the wharf rats are feral, violent creatures. Critter type. Can appear as secondaries elsewhere: I had a Wharf rat appear as a secondary to a strand crab on Jaguero Island.
The Wharf Rat is a wild pet found in Booty Bay and Tol Barad that can be captured during pet battles.
Guide awaiting review
Hunt in Booty Bay
Travel to Booty Bay and search for Wharf Rats among the docks. Be prepared to battle and defeat competing critters like crabs and roaches, as they share spawn locations with the Wharf Rat.
Search Tol Barad wharves
If Booty Bay proves difficult, venture to Tol Barad and search around the wharves where Wharf Rats spawn as tameable pets.
Capture the pet
Engage the Wharf Rat in a pet battle and weaken it until you can capture it for your collection.
