In Paraty, the “fluminense” city that has the face of Brazil´s 500 years, a block formed by almost prehistoric beings gets out on the stone streets bringing joy and repelling carnival´s bad fluids. On a carnival´s Saturday, 15 years ago, some friends played with mud in in the mangrove of “Praia do Jabaquara” (“Jabaquara´s Beach”) when they realized that they were unrecognizable. They went out in the city´s Historic Center streets like that, causing a greimpact.This was the rising of one of Brazilian carnival´s most bizarre blocks: The Mud Block. On the following year, a larger group gathered and left in a block on a carnival´s Saturday, representing a prehistoric tribe.