Young Nepalese Hindu priests take a bath as a part of holy rituals during Janai Purnima festival at Pashupatinath temple in Kathmandu, Nepal, on Aug. 18, 2016. During this festival Hindus take holy baths and perform annual change of the Janai, a sacred cotton string worn around their chest or tied on the wrist, in the belief that it will protect and purify them. (AP Photo/Niranjan Shrestha, File)
AP Photo/Niranjan Shrestha, File
Summer Sharif looks at an Owl butterfly feeding on an orange during a photo call for hundreds of tropical butterflies being released to launch the Natural History Museum's Sensational Butterflies exhibition in London on March 23, 2016. (AP Photo/Kirsty Wigglesworth, File)
AP Photo/Kirsty Wigglesworth, File
A model wears a creation for Jean-Paul Gaultier's Haute Couture Fall-Winter 2016-2017 fashion collection presented on July 6, 2016, in Paris. (AP Photo/Thibault Camus, File)
AP Photo/Thibault Camus, File
Volkswagen cars are presented to media inside a delivery tower prior to the company's annual press conference in Wolfburg, Germany, on April 28, 2016. (AP Photo/Markus Schreiber, File)
AP Photo/Markus Schreiber, File
Sea gulls fly over beach chairs at the beach of the Baltic Sea in Timmendorfer Strand, on Oct. 22, 2016. (AP Photo/Michael Probst, File)
AP Photo/Michael Probst, File
Ultra-Orthodox Jews gather by the Yarkon springs as they participate in a Tashlich ceremony near Rosh Haain, central Israel, on Oct. 10, 2016. Tashlich, which means "to cast away" in Hebrew, is a practice in which Jews go to a large flowing body of water and symbolically "throw away" their sins by throwing a piece of bread, or similar food, into the water before the Jewish holiday of Yom Kippur. (AP Photo/Oded Balilty, File)
AP Photo/Oded Balilty, File
A 120-meter long sculpture of the 17th-century London skyline is set alight in a retelling of the story of the Great Fire of London in 1666, in London, on Sept. 4, 2016. The event was part of a collaboration between American 'burn' artist David Best and Artichoke, commemorating the fire. (AP Photo/Frank Augstein, File)
AP Photo/Frank Augstein, File
Models wear a creation for Chanel's Spring-Summer 2017 ready-to-wear fashion collection presented in Paris on Oct. 4, 2016. (AP Photo/Francois Mori, File)
AP Photo/Francois Mori, File
Migrating cranes fly during sunset near Straussfurt, central Germany, on Oct. 31, 2016. The cranes rest in central Germany on their way from breeding places in the north to their wintering grounds in the south. (AP Photo/Jens Meyer, File)
AP Photo/Jens Meyer, File
Colored by the setting sun, European starlings mass in the sky in the town of Rakov, about 45 kilometers (28 miles) northwest of Minsk, Belarus, on Oct. 4, 2016. (AP Photo/Sergei Grits, File)
AP Photo/Sergei Grits, File
In this underwater picture a woman floats in a swimming pool during a summer day in Madrid, Spain, Aug. 28, 2016. (AP Photo/Daniel Ochoa de Olza, File)
AP Photo/Daniel Ochoa de Olza, File
People walk past World War II tanks at Dvortsovaya (Palace) Square in St.Petersburg, Russia, in the early morning at the time Nazi Germany attacked the Soviet Union 75 years ago, on June 22, 2016. Zimny (Winter) palace is in the background. (AP Photo/Dmitri Lovetsky, File)
AP Photo/Dmitri Lovetsky, File
People visit the artwork titled Seven Magic Mountains by artist Ugo Rondinone on May 11, 2016, near Jean, Nev., south of Las Vegas. (AP Photo/John Locher, File)
AP Photo/John Locher, File
Jim Kowalczik plays with Jimbo, a 1500-pound Kodiak bear, at the Orphaned Wildlife Center in Otisville, N.Y., on Sept. 7, 2016. (AP Photo/Mike Groll, File)
AP Photo/Mike Groll, File
The Soyuz TMA-19M capsule carrying NASA's Jeff Williams, and Russian cosmonauts Alexey Ovchinin and Oleg Skripochka descends beneath a parachute near the town of Zhezkazgan, Kazakhstan, on Sept. 7, 2016. The record-setting American and two Russians landed safely back on Earth after a six-month mission aboard the International Space Station. (Maxim Shipenkov/Pool Photo via AP, File)
Maxim Shipenkov/Pool Photo via AP, File
Red deer fight during the rutting season at a wildlife park on a fall day in Bonn, western Germany, on Oct. 27, 2016. (AP Photo/Markus Schreiber, File)
AP Photo/Markus Schreiber, File
A rainbow appears over the beach and ocean shortly after dawn in Santa Monica, Calif., as one of a series of storms sweeps through California on Oct. 28, 2016. (AP Photo/Reed Saxon, File)
AP Photo/Reed Saxon, File
The Thufa hill in Reykjavik, Iceland, is shown on Oct. 28, 2016. (AP Photo/Frank Augstein, File)
AP Photo/Frank Augstein, File
A fish splashes as it is caught by fish farm workers at a drained pond outside the village of Shkolny, 60 km (38 miles) west of Minsk, Belarus, on Oct. 18, 2016. The farm supplies their produce, mainly carp, to local stores. (AP Photo/Sergei Grits, File)
AP Photo/Sergei Grits, File
Members of a South Korean military honor guard throw their guns into the air during the 68th anniversary of Armed Forces Day at the Gyeryong military headquarters in Gyeryong, South Korea, on Oct. 1, 2016. (AP Photo/Lee Jin-man, Pool, File)
AP Photo/Lee Jin-man, Pool, File
The Soyuz-FG rocket booster with Soyuz MS space ship carrying a new crew to the International Space Station, ISS, blasts off at the Russian leased Baikonur cosmodrome, Kazakhstan, on July 7, 2016. (AP Photo/Dmitri Lovetsky, File)
AP Photo/Dmitri Lovetsky, File
Hungary's Balazs Baji, center, and Canada's Johnathan Cabral compete in a men's 110-meter hurdles heat during heavy rain at the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, on Aug. 15, 2016. (AP Photo/Matt Slocum, File)
AP Photo/Matt Slocum, File
A jay picks kernels in the forest on the outskirts of Novogrudok, 150 km (93 miles) west of the capital Minsk, Belarus, on Jan. 17, 2016. (AP Photo/Sergei Grits, File)
AP Photo/Sergei Grits, File
People enjoy a chair swing ride as the sun sets at an amusement park in Athens on June 29, 2016. (AP Photo/Petros Giannakouris, File)
AP Photo/Petros Giannakouris, File
Fields of canola blossoms extend into the horizon as Bob Calvey looks under the hood of a 1949 Pontiac that sits at his salvage yard in Oak Grove, Ky., on April 12, 2016. (AP Photo/David Goldman, File)
AP Photo/David Goldman, File
Men on horseback ride trough a pine tree forest chased by a bull in Tordesillas, Spain, on Sept. 13, 2016. Men on horseback and on foot traditionally have chased the bull and speared it in front of thousands of onlookers in what became known as one of Spain's goriest spectacles, but amid increasing protests by animal rights activists the regional government last year banned the killing of bulls at town festivals, though traditional bullfights were not affected. (AP Photo/Daniel Ochoa de Olza, File)
AP Photo/Daniel Ochoa de Olza, File
A bee flies over a sunflower on a field near Frankfurt, Germany, on Aug. 30, 2016. (AP Photo/Michael Probst, File)
AP Photo/Michael Probst, File
A couple kisses in front of graffiti depicting Russian President Vladimir Putin, left, and Republican presidential candidate Donald Trump, on the walls of a bar in the old town in Vilnius, Lithuania, on May 14, 2016. (AP Photo/Mindaugas Kulbis, File)
AP Photo/Mindaugas Kulbis, File
A woman looks across as a gay parade participant poses for pictures during Gay Pride parade in Madrid, Spain, July 2, 2016. (AP Photo/Daniel Ochoa de Olza, File)
AP Photo/Daniel Ochoa de Olza, File
Ben Blaque 2016 AP YEAR END PHOTOS - Ben Blaque, a crossbow sharpshooter, stands still after firing a crossbow wearing a hood, that then triggered a series of pre-set crossbows culminating in an arrow piercing the apple above his head, during media event to promote the magic show, The Illusionists 1903, at the National Auditorium in Mexico City, on July 13, 2016. (AP Photo/Rebecca Blackwell, File)
AP Photo/Rebecca Blackwell, File
The barrel of a tank protrudes as it moves across challenging terrain during a competition in Alabino, outside Moscow, Russia, on July 30, 2016. The competition, called the International Army Games, involves troops from Russia and several other nations. (Vadim Savitsky/Russian Defense Ministry Press Service pool photo via AP, File)
Members of "Vella de Xiquets de Valls" try to complete their human tower during the 26th Human Tower Competition in Tarragona, Spain, on Oct. 2, 2016. The tradition of building human towers, or Castells, dates back to the 18th century and takes place during festivals in Catalonia, where "colles," or teams, compete to build the tallest and most complicated towers. The structure of the castells varies depending on their complexity. A castell is considered completely successful when it is loaded and unloaded without falling apart. The highest castell in history was a 10 floor structure with 3 people in each floor. In 2010 castells were declared by UNESCO one of the Masterpieces of the Oral and Intangible Heritage of Humanity. (AP Photo/Emilio Morenatti, File)
AP Photo/Emilio Morenatti, File
Israeli Arab boys jump into the Mediterranean sea from the ancient wall surrounding the old city of Acre, northern Israel, on Aug. 2, 2016. (AP Photo/Ariel Schalit, File)
AP Photo/Ariel Schalit, File
The sun rises behind the Christ the Redeemer statue, above the Guanabara bay in Rio de Janeiro, Brazil, on July 19, 2016, ahead of the 2016 summer Olympics. (AP Photo/Felipe Dana, File)
AP Photo/Felipe Dana, File
Rosa Graber, third from left, Margerie Steury, second left, and Joanne Steury, left, look out to sea as they touch Pacific Ocean waters for the first time during a family trip from their Amish community in Michigan, on June 9, 2016, in Coronado, Calif. (AP Photo/Gregory Bull, File)
AP Photo/Gregory Bull, File
A motorcycle rider carries his cat, Chiquinho, on his bike, near Maracana stadium in Rio de Janeiro, Brazil, on June 19, 2016. (AP Photo/Silvia Izquierdo, File)
AP Photo/Silvia Izquierdo, File
Fireworks light the sky over Copacabana beach during New Year's Eve celebrations in Rio de Janeiro, Brazil, on Jan. 1, 2016. (AP Photo/Mauro Pimentel, File)
AP Photo/Mauro Pimentel, File
A man holds a fishing rod as floating trash hits the coastline of the Mediterranean Sea in Beirut, Lebanon, on Sept. 29, 2016. (AP Photo/Hassan Ammar, File)
AP Photo/Hassan Ammar, File
A model named feebee poses as part of art installation "Narcissism : Dazzle room" made by artist Shigeki Matsuyama at rooms33 fashion and design exhibition in Tokyo on Sept. 14, 2016. Matsuyama's installation featured a strong contrast of black and white, which he learned from dazzle camouflage used mainly in World War I. (AP Photo/Eugene Hoshiko, File)
AP Photo/Eugene Hoshiko, File
Pyrotechnics explode as a military parachutist descends upon Kalma Airport in Wonsan, North Korea, on Sept. 25, 2016. Thousands of Koreans and hundreds of foreign tourists and journalists invited to Wonsan, a port city, for the Wonsan International Friendship Air Festival, were given a glimpse of North Korea's own Air Force fighters, remote-controlled scale mock-up planes including an F-16 fighter jet, and demonstrations of military parachuting, with the first two skydivers descending with huge North Korean and ruling party flags. (AP Photo/Wong Maye-E, File)
AP Photo/Wong Maye-E, File
The sun sets over the the Giza Pyramids near Cairo, Egypt, on Aug. 19, 2016. (AP Photo/Amr Nabil, File)
AP Photo/Amr Nabil, File
A mobile screen is reflected on a fan's sunglasses as she plays "Pokemon Go" in Hong Kong on July 25, 2016. Pokemon fans participated in creature hunting as the app was released to both iPhone and Android users. (AP Photo/Kin Cheung, File)
AP Photo/Kin Cheung, File
A giant panda named Nuan Nuan is shown at the Giant Panda Conservation Center at the National Zoo in Kuala Lumpur, Malaysia, on Aug. 23, 2016. The giant panda has been reclassified as vulnerable from endangered on the International Union for the Conservation of Nature's list of endangered species, which was released on Sept. 4, 2016 at the World Conservation Congress in Hawaii. (AP Photo/Joshua Paul, File)
AP Photo/Joshua Paul, File
U.S. first lady Michelle Obama sits in a car upon her arrival at Torrejon de Ardoz military base near Madrid, Spain, on June 29, 2016, on the final leg of a three-nation tour to promote her global girls' education initiative. (AP Photo/Daniel Ochoa de Olza, File)
AP Photo/Daniel Ochoa de Olza, File