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Piranhas are a species of carnivorous fish that reside in the Amazon River. In Rio 2, piranha are shown devouring a group of Capybaras in the middle of an acrobatic performance, and the pool of water at the Pit of Doom has some residing in out (one of which bites the ball during the air soccer match). Big Boss has a tank full of them in his office. When Linda and Tulio were doing an Amazon Expedition in the rainforest on a canoe, a butterfly appears, and a pirrhana jumps out of the water and eats it, causing Linda to say "Spit it out!".