A girl dances in front of the digital art installation “Light in Dark” created by teamLab, a collaborative of Japanese digital artists, during a special exhibition of “Shake! Art Exhibition! and Learn and Play! teamLab Future Park” at National Museum of Emerging Science and Innovation (or Miraikan) in Tokyo, Japan, 19 January 2015. The exhibition is held through 01 March 2015. (Photo by Kimimasa Mayama/EPA)

The Kung Fu King was spotted in Botswana, Africa, as the two giraffes fought for dominance. Thomas Retterath, 53, says hes often seen the mammals fight, but they usually do it by banging their heads against each others bodies.Here: A giraffe lands a karate kick on a rival on the plains of Botswana. (Photo by Thomas Retterath/Caters News)

A truck laden with logs travels in Araribóia Indigenous Reserve, Maranhão, Brazil on August 7, 2015. Loggers have been stealing hardwood trees from indigenous lands in Brazil. The Guardians of the Forest are an armed militia formed by the Guajajara tribe to protect their reserve. (Photo by Bonnie Jo Mount/The Washington Post)

The Eiffel Tour-the body language of balance. I came across this group of young adults from Sarajevo, Bosnia, having fun testing their balance two nights ago in on the Esplanade de Trocadero. (Photo and comment by Peter Turnley)

An old woman smokes a cigar at Old Havana's Plaza de la Catedral on February 07, 2006 in Havana, Cuba. (Photo by Marco Prosch/Getty Images)

A woman looks at cows on the Mare e Sol beach in Coti-Chiavari, on the French Mediterranean island of Corsica, on May 17, 2017. A herd of some thirty wild cattle take up their summer residence on stretch of beach each year. (Photo by Pascal Pochard-Casabianca/AFP Photo)

Cyril Despres of France tries to get his Peugeot out of the sand as co-pilot David Castera pushes the car during the 10th stage of the Dakar Rally 2016 near Fiambala, Argentina, January 13, 2016. (Photo by Marcos Brindicci/Reuters)

A North Korean soldier kicks a pole along the bank of Yalu River near the North Korean town of Sinuiju, opposite the Chinese border city of Dandong, February 4, 2014. (Photo by Jacky Chen/Reuters)