A hippopotamus performs during a show at the circus in Krasnoyarsk, Siberia, Russia, July 7, 2016. (Photo by Ilya Naymushin/Reuters)

A woman controls a ball on Ipanema beach in Rio de Janeiro, Brazil, April 14, 2016. As hundreds of thousands of tourists begin descending on Rio de Janeiro for the Olympics that start August 5, the headlines have focused on the street violence, the Zika virus, the water pollution and the rush to finish venues and transport. But Rio, known by Brazilians as the “Marvelous City”, glistens despite it all. The beach is a way of life here. (Photo by Nacho Doce/Reuters)

Cambodian children sleep on a pavement at a park in Phnom Penh on July 8, 2016. (Photo by Tang Chhin Sothy/AFP Photo)

UK Big Brother 2016 Winner Jason Burrill and Aisleyne Horgan Wallace pictured having a heated arguement in the middle of the street in Highgate, London afternoon September 11, 2016. Aisleyne was seen throwing a bottle of water in Jasons face. (Photo by KP Pictures)

In this September 19, 2014 photo, explosives are detonate by Peruvian counternarcotics forces on a part of a clandestine grassy airstrip in the Apurimac, Ene and Mantaro River Valleys, or VRAEM, the world's No. 1 coca-growing region, in Ayacucho, Peru. The dynamiting of craters by Peruvian security forces into clandestine airstrips cuts into profits but hardly discourages cocaine traffickers who net tens of thousands of dollars with each flight flown from these airstrips. (Photo by Rodrigo Abd/AP Photo)

A passenger waits after his train arrived in Nouadhibou, Mauritania’s second largest city and the main export port for the country’s iron ore industry, on June 25, 2014. The mining company’s employees proudly call their firm the lung of their nation's economy and the train that ferries the ore to the coast stretches some two kilometres, making it one of the world's longest. SNIM mines black iron ore in the northern town of Zouerate, a remote desert location which nevertheless attracts people from all over the country looking for work. (Photo by Joe Penney/Reuters)

A member from the Iraqi security forces beats an Islamic State insurgent, who was captured in Tikrit April 1, 2015. Iraqi troops and Shi'ite paramilitary fighters were battling Islamic State on Wednesday in northern Tikrit, which officials described as the Sunni Muslim militant group's last stronghold in the city. (Photo by Alaa Al-Marjani/Reuters)

Female porters carry a holy woman belonging to the Jain community through a street to collect food from local residents living in nearby areas, during early morning in the western Indian city of Ahmedabad December 19, 2014. (Photo by Amit Dave/Reuters)