The Jet Propulsion Lab team's RoboSimian robot turns on a valve at a simulated disaster-response course during day one of the Defense Advanced Research Projects Agency (DARPA) Robotics Challenge finals in Pomona, California, June 5, 2015. (Photo by David McNew/Reuters)

Motorcycling, Gotland Grand National 2016 endure race, Gotland, Sweden on October 29, 2016. Riders compete. (Photo by Soren Andersson/Reuters/TT News Agency)

Japanese sеx doll exhibition attracts hundreds of mannequin-fetishists to celebrate 40 years of the X-rated love bots in Tokyo, Japan on May 19, 2017. These silicon seductresses were the star of an extraordinary exhibition in Japan showcasing sеx dolls that cost as little as a second hand car. Japanese sеx doll maker Orient Industry (originally Orient made dolls for disabled people) were laying bare their dazzling bevvy of beauties in an extravaganza to mark its 40th anniversary this week. Here: Orient industry prides itself on its detail with two looking extremely real as they sit flirtatiously on a couch. (Photo by Masatoshi Okauchi/Rex Features/Shutterstock)

An inflatable snake hovers during a performance by the French street theater company Plasticiens Volants on September 4, 2011 in Berlin, Germany. The spectale, featuring gigantic flying inflatable fairy-tale creatures and performers on stilts and in costume was a part of celebrations for the 125th anniversary of the Kurfuerstendamm, known locally as the Ku'damm, a shopping boulevard. (Photo by Adam Berry/Getty Images)

A visitor stands in front of a portrait taken by artist Bruce Gilden at the “Masters of Photography” exhibition at the Photokina trade fair in Cologne on September 20, 2016. The fair for the photographic and imaging sector, that is running from September 20 to 25, 2016, presents products from image capture, image processing and storage to image output. Photokina also includes a program of events with congresses, workshops, symposiums and photography exhibitions. (Photo by Patrik Stollarz/AFP Photo)

High angle view of a young woman reading in a bathtub, turning page, enjoying time with herself. Candles and red wine. Valentines day concept, International womans day. (Photo by Vuk Saric/Getty Images)

The Blue Man Group performs on stage during a media preview ahead of their show in Singapore on March 31, 2016. Blue Man Group was started by three friends in New York in 1991 as a way to celebrate the human spirit through music, science, art and theater. (Photo by Roslan Rahman/AFP Photo)

Derrick Campana kneels beside Angel Marie, a three legged mini horse who wears a prosthetic leg made by Campana, at Animal Ortho Care in Sterling, Virginia, U.S., March 27, 2017. (Photo by Kevin Lamarque/Reuters)