A Chinese man is looking for a good home for his pet carp which he says is fully trained.
Fang Peng, from Pingsai town, Guizhou Province, claims 'Submarine' responds to his name being called out.
Fang runs a fishing pond and his family have been training the carp for six years, reports the Guizhou City Papers.
He said: "He is very smart, and never takes the bait of anglers."
Fang says the fish developed his ability to understand human speech from his father who used to spend four hours a day with him.
Fang added: "He would tie a piece of cake or bread on the top of the fishing pole and call 'Submarine'.
"On hearing his name, Submarine would emerge from the water and take the food. Or I would feed him by hand."
Fang needs to find a new home for Submarine as the river which runs into his fishing pond has been diverted for irrigation.