A chimpanzee feeding a leopard cub at Southam Park Zoo, Warwickshire. (Photo by Ian Tyas/Keystone Features/Getty Images). 1971

Men watch model trains running along the bar at Bar Ginza Panorama Shibuya Branch on June 3, 2009 in Tokyo, Japan. The bar caters to model train enthusists and customers are able to bring their own model trains to run on the tracks. (Photo by Junko Kimura/Getty Images)

A high-kicking Parisian can-can dancer. (Photo by Hulton Archive/Getty Images). 1895

Yolanthe Cabau attends amfAR MILANO 2011 at La Permanente on September 23, 2011 in Milan, Italy. (Photo by Vittorio Zunino Celotto/Getty Images for amfAR)

Three Chinese soldiers at the time of a civil war in China. (Photo by General Photographic Agency/Getty Images). 1922

A woman runs through the early morning mist on Hampstead Heath on September 30, 2011 in London, England. Much of the UK is enjoying a spell of unseasonably hot weather which is expected to last into next week. (Photo by Dan Kitwood/Getty Images)

Rosie the elephants proves to be heavier than her companion and tips the park bench when she tries to sit down. (Photo by Mike Lloyd/Getty Images). 1977

Apple's Senior Vice President of Worldwide product marketing Phil Schiller speaks about the new iPhone 4s at the company's headquarters October 4, 2011 in Cupertino, California. (Photo by Kevork Djansezian/Getty Images)