Comet the goldfish may be the world’s most intelligent fish after its  owner, Dean Pomerleau, trained it to perform a range of aquatic  activities.

Comet prepares to shoot a hoop
Comet can play football, basketball and even limbo dance under a bar.  The genius of the water world can also play fetch with a hoop, slalom  around a series of poles and push a rugby ball over a set of posts.

Comet plays soccer
Dr Pomerleau from Los Angeles, used a training technique called  positive reinforcement to train Comet to perform the tricks. This  involves rewarding the fish with food when it successfully completes a  task.
Dr Pomerleau insisted there was nothing fishy about his claim, saying anyone can teach their pet to perform similar tricks.

Comet has been trained to push a miniature rugby ball over a set of posts
“There is mounting evidence that fish are more intelligent than people give them credit for,” the fish training expert said.
“With the correct tools and the basic promise of a food reward, fish  can very quickly learn complex tricks – like the limbo, slalom or  playing fetch.”
“Now people in the market for a dog might want to consider a fish instead.”

Gold ring: Comet's owner adapted training methods previously used on dolphins
Dr Pomerleau already holds the official world record for having the  fish with the largest repertoire of tricks, with a three year-old calico  fantail named Albert Einstein.
But four-inch long Comet has already learned Albert’s array of tricks  and is set to take the crown of the world’s most intelligent goldfish.
Source: MostAmazingNews.com