Esau the ape at the piano. (Photo by Reinhold Thiele/Topical Press Agency/Getty Images). Circa 1900

Joe Mendi, the gentleman chimpanzee, steps out of a taxi at Belle Vue Hospital in New York, where he is visiting invalid children. (Photo by Topical Press Agency/Getty Images). 1925

Fashionable racegoers stopping to listen to an accordion player and admire his pet monkey on the first day of Royal Ascot. (Photo by Topical Press Agency/Getty Images). 18th June 1935

A Spanish Romany dancer performing with a pet baboon in Aranjuez, near Madrid. (Photo by Three Lions/Getty Images). Circa 1955

Dorothy Lamour (1914 – 1996), playing with “Jiggs” the screen chimpanzee, while on location in Palm Springs for the filming of “Her Jungle Love”, a Paramount production. (Photo by Hulton Archive/Getty Images). Circa 1937

American vaudeville comedian Charley Murray (1872 – 1941) talking with a capuchin monkey in a scene from “The Masked Woman”. (Photo by Hulton Archive/Getty Images). Circa 1923

An American postcard entitled “Little Nap the Napoleon of the Chimpanzee World” showing a model dog, chimp and horse. (Photo by Hulton Archive/Getty Images). Circa 1921

American comedian Buster Keaton (1895–1966) sitting with Chicago the monkey and director Edward Sedgwick (1893–1953) on the MGM set of “The Cameraman”. (Photo by Hulton Archive/Getty Images). 1928

Street violinist performs with a monkey at Ilford in Essex. (Photo by Fox Photos/Getty Images). 15th January 1932

American actor and Olympic swimmer Johnny Weissmuller (1904–1984) as Tarzan with Johnny Sutherland as Boy and the chimpanzee Cheetah. (Photo by Keystone Features/Getty Images). November 1945

An Egyptian street entertainer tries to amuse a party of British delegates from Lancashire with his monkey as they leave an important cotton congress at the Opera House in Cairo. (Photo by Fox Photos/Getty Images). 1st February 1938

Two “Tiffany Talking Chimps” dressed as big game hunters in the film “Africa Squawks” directed by Connie Rasinski. (Photo by General Photographic Agency/Getty Images). 1939

Winter woolies are provided for the chimpanzees at London Zoo, and here a keeper, Mr Bown, is assisted by “Jackie” as he appears to be knitting hers. (Photo by Fox Photos/Getty Images). 24th November 1938

Chimpanzee actors Baron (left) and Marquis clamber over their owner Gene Detroy, during the filming of 'Stop Press Girl' at Pinewood Studios, England. (Photo by Robert Hawkins/Hulton Archive/Getty Images). 1949

Three women appearing on stage as the three wise monkeys, “Hear No Evil, Speak No Evil, See No Evil”, in the show “Voila Les Dames”, at the Prince of Wales Theatre in London. (Photo by Sasha/Getty Images). 1st June 1935
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