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Sérgio de Magalhães Gomes Jaguaribe (February 29, 1932, August 24, 2025), known by the pseudonym Jaguar, was a Brazilian cartoonist and comics artist. He achieved notoriety as one of the founders of the satirical newspaper O Pasquim in 1969, which became a symbol of opposition to the military dictatorship in Brazil. Jaguar is famous for creating the character Sig, the newspaper's mascot mouse, and for his humorous and ironic style that circumvented censorship, inspiring other journalists and cartoonists.