A retired man (L) looks toward two girls wearing miniskirts, July 13, 1969 in Nice, France. (Photo by AFP Photo)

Yalena Leuliette, 7, of Greenbelt, Md., throws seeds from a cattail plant up in the air as she plays while visiting the Kenilworth Aquatic Gardens in northeast Washington, on Sunday, August 9, 2015. Leuliette visits the public garden with her parents a few times a year. (Photo by Jacquelyn Martin/AP Photo)

Eugloss dilemma, male, Florida, Biscayne National Monument. (Photo and caption by Sam Droege/USGS Bee Inventory and Monitoring Lab)

A portrait of Eric Abidal of Lyon prior to the UEFA Champions League Group D match between Olympique Lyonnais and Manchester United at the Municipal de Garland Stadium on September 15, 2004 in Lyon, France.

A young man “painting” the Eiffel Tower. (Photo by Keystone/Getty Images). 9th May 1970

1974: American boxer Muhammad Ali, formerly Cassius Clay, strikes an aggressive pose at a press conference on November 29, 1974. (Photo by Harry Dempster/Express/Getty Images); American actor Will Smith at the Royal Premiere of the film Ali in London on December 11, 2001. Smith starred as Muhammad Ali in the film. (Photo by Dave Hogan/Getty Images)

Singer and jury member Brian Ferry attends the Cartier “Travel With Style” Concours on March 12, 2011 in New Delhi, India. (Photo by Pascal Le Segretain/Getty Images for Cartier)

Nine-year-old Barry Miller appears none too impressed with the movements of an African Rock Python which is exploring his scalp. (Photo by Keystone/Getty Images). 27th August 1961