A women sell food under the wing of a plane wreckage being used as housing in M'Poko Internally Displaced Persons camp in Bangui, Central African Republic on Saturday, February 13, 2016. The M'Poko IDP camp, just outside the capitol's airport, currently houses close to 20,000 people displaced due to the ongoing conflict in Central African Republic. (Photo by Jane Hahn/The Washington Post)

Revellers from Russia parade during the Aoussou Carnival in Sousse, Tunisia July 26, 2015. (Photo by Anis Mili/Reuters)

An American family with a carved pumpkin illuminated by a candle to celebrate Halloween. (Photo by Sherman/Three Lions/Getty Images). Circa 1955

This photo taken on April 5, 2013 shows Buddhist monks passing a yak in Seda Monastery, the largest Tibetan Buddhist school in the world, with up to 40,000 monks and nuns in residence for some parts of the year. Seda, known to Tibetans as Serthar is located in Ganzi prefecture in the west of China's Sichuan province and has become a hotbed of protests and violence since the Tibetan uprisings of March 2008. (Photo by Peter Parks/AFP Photo)

Tony the ten-year-old tawny owl tucks himself on December 8, 2025 into a Christmas tree at the Scottish Owl Centre, West Lothian, where he was hatched and raised. (Photo by Katielee Arrowsmith/South West News Service)

A man watches as high surf crashes into the wall and spills onto Channel Drive in Montecito, Calif., January 7, 2016. Bacteria levels can increase significantly during and after rainstorms as contaminants in the runoff enter the ocean via storm drains, creeks and rivers. (Photo by Mike Eliason/AP Photo)

A child stands inside a large soap bubble made by a street artist at the Mayor square in central Madrid, Friday, December 9, 2016. (Photo by Francisco Seco/AP Photo)

Woman taunts naked man. (Photo by riskms/Getty Images)