Rebel fighters search men who fled from Islamic State-controlled areas, upon their arrival in the northern Syrian rebel-held town of Waqf, near al-Rai town, in Aleppo Governorate, Syria, September 29, 2016. Photo by Kjalil Ashawi.

Models present creations by German designer Karl Lagerfeld as part of his Spring/Summer 2017 women’s ready-to-wear collection for fashion house Chanel during Fashion Week in Paris, France, October 4, 2016. Photo by Charles Platiau.

Football Soccer – Ecuador v Chile – World Cup 2018 Qualifier – Chile’s soccer players Charles Aranguiz (L) and Mauricio Isla leave from the field, Olimpico Atahualpa Stadium, Quito, Ecuador, October 6, 2016. Photo by Guillermo Granja.

A devotee of the Chinese Bang Neow shrine poses with his cheek pierced with blades as he takes part in a procession celebrating the annual vegetarian festival in Phuket, Thailand, October 6, 2016 . Photo by Jorge Silva.

First Lady Michelle Obama (C) encourages a youngster with a pitchfork as they harvest vegetables in the White House Kitchen Garden, where she is promoting healthy eating habits by the nation’s youth, in Washington, U.S., October 6, 2016. Photo by Mark Theiler.

A participant playing the role of a victim shouts for help during a national multi-hazard drill organized by the National System for Prevention, Mitigation and Attention to Disasters (SINAPRED), in the 30 de Mayo neighborhood in Managua, Nicaragua, September 26, 2016. Photo by Oswaldo Rivas.

Audience members listen as U.S. Democratic presidential nominee Hillary Clinton delivers an economic speech during a campaign stop in Toledo, Ohio, U.S., October 3, 2016. Photo by Brian Snyder.

A malnourished boy lies on a bed outside his family’s hut in al-Tuhaita district of the Red Sea province of Hodaida, Yemen, September 26, 2016. Photo by ABDULJABAR ZEYAD.

Visitors to the London Frieze Art Fair study ‘Pink Table’ by Portia Munson at the show, in London, Britain, October 6, 2016. Photo by Peter Nicholls.

Silhouettes by the artist William Kentridge are seen at the London Frieze Art Fair in London, Britain, October 6, 2016. Photo by Peter Nicholls.

A human skull is seen inside one of the three mass graves that contain in total the remains of around 200 bodies believed to have been killed by Spain’s late dictator Francisco Franco’s forces during the civil war, at El Carmen’s cemetery in Valladolid, Spain, August 10, 2016. Photo by Juan Medina.

A model presents a creation by Chinese designer Xiong Ying as part of her Spring/Summer 2017 women’s ready-to-wear collection for fashion house Heaven Gaia during Fashion Week in Paris, France, October 5, 2016. Photo by Charles Platiau.

Russian President Vladimir Putin drives a quad bike as he visits a reserve for Przewalski’s horses outside Orenburg, Russia, October 3, 2016. Photo by Sputnik Photo Agency.

Sigourney Weaver poses with co-star Lewis MacDougall as she arrives for the gala screening of the film «A Monster Calls», on the second night of the 60th British Film Institute (BFI) London Film Festival at Leicester Square in London, Britain, October 6, 2016. Photo by Neil Hall.

Chloe Cofresi, dressed as Poison Ivy, poses outside the New York Comic Con in New York, U.S., October 6, 2016. Photo Shannon Stappleton.