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Paul the octopus lives in an aquarium in Germany. His keepers use him to predict world cup winners by placing food in two containers marked with the flags of the competitors. Whichever he chooses first is more likely to win:

His keepers say he correctly predicted nearly 70% of Germany's results during the 2008 European Championship.[...]

"Paul's prediction was phenomenal," said aquarium spokesman Tanja Munzig.

"He swam straight over to the German glass, climbed in and even put a lid on top once he was sitting inside."

The octopus, which was born in the UK and was moved to the German aquarium, has become a national celebrity after correctly predicting Germany would beat Australia in their opening match, then lose to Serbia, and then beat Ghana.

Link via Geekosystem