Comet, the goldfish that plays soccer and does the limbo! (and yours can do it too...)

It seems that the animal world will never stop astonishing me. In this months of blogging I've collected a lot of story about animals related to water that seem incredible to me. Today it's the turn of Comet, a common goldfish, who has been trained to play soccer! and it's not enough... it can also do the limbo, play basketball, slalom and do many other tricks..
Look the videos:









What's more is that if you have a goldfish, you could train it to do the same tricks using the operant conditioning positive reinforcement technique...
What is it? Click here for more.