Sérgio Jaguaribe, known as Jaguar, (born February 29, 1932) is a Brazilian cartoonist and comics artist. He was born in Rio de Janeiro. Together with Millôr Fernandes, Ziraldo and others, he founded in 1969 the groundbreaking satirical newspaper O Pasquim. One of his most popular creations was Sig (from "Sigmund"), a neurotic mouse (in the stories he's called a rat).
