Cacareco, a rhinoceros at the São Paulo zoo, was a candidate for the 1958 city council elections with the intention of protesting against political corruption.

Electoral officials, of course, did not accept Cacareco’s candidacy, but she eventually won 100,000 votes, more than any other party.

Cacareco’s candidacy was traced back to a group of students who had printed up 200,000 ballots with her name on them, but the ballots were all legitimately cast by voters, one of whom commented: “Better to elect a rhino than an ass.”
Cacareco died in 1962, but her legacy lives on through the Canadian Rhinoceros Party, led by the rhinoceros Cornelius the First, and in the phrase ‘voto Cacareco’ (Cacareco vote) which to this day is often used to describe protest votes in Brazil.