A young Matachin dancer sits on a the side during the annual pilgrimage in honor of Mexico's patron saint the Virgin of Guadalupe in Ciudad Juarez, Mexico, December 12, 2016. (Photo by Jose Luis Gonzalez/Reuters)

Purev and Buyantogtokh enjoy the warmth of the fire in the snow in Altai Mountains, Mongolia, September 2016. Navigate the snowy wilds of Mongolia with this nomadic reindeer herding family. Photographer Joel Santos dived 1000km into the depths of Northern Mongolia to visit the Ganbaa family near Khovsgol Lake. (Photo by Joel Santos/Barcroft Images)

Mount Sinabung, a highly active volcano on Sumatra island, erupted several times this week. A volcanology agency has declared a danger zone of about four miles from the crater after seven farmers were killed and two others seriously injured. Here: A man carries his dog as a giant ash cloud rises from the Sinabung volcano in Karo, Indonesia on May 26, 2016. (Photo by Sutanta Aditya/Barcroft Images)

A Mongolian wrestler adjusts her hair before a match during the 2016 World Sumo Championship on July 30, 2016 in Ulaanbaatar, Mongolia. (Photo by Taylor Weidman/Getty Images)

A selection of work by four photojournalists who have won grants of $10,000 and editorial support from the agency. Here: “Chasing Winter” by Katie Orlinksy. In late summer and early autumn polar bears flock to the native village of Kaktovik in the Alaskan Arctic to eat at “the boneyard” – the remains of whales annually hunted by the community. (Photo by Katie Orlinsky/Getty Images)

A Nepalese Hindu devotee dresses as a deity as he prepares to participate in festivities at the Shikali Temple during celebrations for the Shikali Jatra festival in the village of Khokana, on the outskirts of Kathmandu, on October 19, 2015. Local villagers, who normally do not celebrate the country's most famous festival of Dashain, celebrate the Shikali Jatra each year. (Photo by Prakash Mathema/AFP Photo)

Palestinian girl Manar Al-Shinbari (R), 15, who lost her both legs by what medics said was Israeli shelling at a UN-run school where she was taking refuge during the 50-day war last summer, is helped by her sister to put on her headscarf in an apartment in Jabaliya refugee camp in the northern Gaza Strip January 13, 2015. Manar's mother and three of her brothers were killed in the same incident. The girl's family house was destroyed by Israeli shelling during the war. (Photo by Mohammed Salem/Reuters)

People ride a prototype of a driverless vehicle as it is moves through a pedestrian area in Greenwich, east London, February 11, 2015. Britain has begun testing driverless cars in four cities, launching the first official trials ahead of a series of planned rule reviews to accommodate the new technology. (Photo by Suzanne Plunkett/Reuters)