Members of the Cryophile winter swimming club rub themselves with snow after swimming in the Yenisei river in Krasnoyarsk, Siberia, Russia on January 19, 2018. The air temperature was about –38°C. (Photo by Ilya Naymushin/Reuters)





A woman grooms her Old English sheepdog, Norman Rose, at the City Classic dog show in Portland, Oregon on January 21, 2018. (Photo by Alex Milan Tracy/Sipa USA/Rex Features/Shutterstock)





An armed Swiss police officer stands guard on the roof of a hotel near the congress center where the annual meeting of the World Economic Forum take place in Davos, Monday, January 22, 2018. The meeting brings together entrepreneurs, scientists, chief executives and political leaders from Jan. 23 to 26. (Photo by Fabrice Coffrini/AFP Photo)





Residents watch as a truck, part of a convoy, transporting a Turkish Army tank is driven in the outskirts of the town of Kilis, Turkey, near the border with Syria, Sunday, January 21, 2018. Turkish troops and Syrian opposition forces attacked a Kurdish enclave in northern Syria on Sunday in their bid to drive from the region a U.S.-allied Kurdish militia, which responded with a hail of rockets on Turkish towns that killed at least one refugee. (Photo by Lefteris Pitarakis/AP Photo)





A supporter of the presidential candidate for the Honduran Opposition Alliance Against the Dictatorship for the past election, Salvador Nasralla, lies on the street in front of police officers during a demonstration against the contested re-election of President Juan Orlando Hernandez, in Tegucigalpa, Honduras on January 21, 2018. The opposition called for a “national strike” on Saturday to focus on blocking the country's main roads ahead of the start of the president's new term in office on January 27. Dozens of people have been killed and hundreds jailed since Hernandez was declared the winner of the November 26 run-off election – but only after a three week stretch of often-interrupted ballot counting that stoked tensions and sparked accusations of fraud in the Central American country. (Photo by Orlando Sierra/AFP Photo)





A reveller dressed as a devil rides among fireworks during “Correfocs” (fire runs), traditional celebrations in eastern Spain with people dressed as dancing devils while lighting fireworks among crowds of spectators, to mark the end of the local festivities in Palma de Mallorca, Spain, January 21, 2018. (Photo by Enrique Calvo/Reuters)





Revellers dressed as devils walk among fireworks during “Correfocs” (fire runs), traditional celebrations in eastern Spain with people dressed as dancing devils while lighting fireworks among crowds of spectators, to mark the end of the local festivities in Palma de Mallorca, Spain, January 21, 2018. (Photo by Enrique Calvo/Reuters)





An Indian soldier stands guard next to rifles during a rehearsal for the Republic Day parade on a winter morning in New Delhi, India, January 22, 2018. (Photo by Adnan Abidi/Reuters)





Ukrainian opposition figure and Georgian former President Mikheil Saakashvili attends a court hearing in Kiev, Ukraine January 22, 2018. (Photo by Valentyn Ogirenko/Reuters)





A girl is consoled as she mourns the death of her father, who according to the local media was killed by firing from the Pakistan side of the border on Sunday night, before his cremation at Kanachak in Akhnoor Sector on the outskirts of Jammu January 22, 2018. (Photo by Mukesh Gupta/Reuters)





A mother and her three year-old sick child sleep inside a protestant church in Agats, Asmat District, after the government dispatched military and medical personnel to the remote region of Papua to combat malnutrition and measles, Indonesia January 22, 2018 in this photo taken by Antara Foto. (Photo by M. Agung Rajasa/Reuters/Antara Foto)





Czech Republic' s Barbora Strycova reacts after a point during her women' s singles fourth round match against Czech Republic' s Karolina Pliskova on day eight of the Australian Open tennis tournament in Melbourne early January 23, 2018. (Photo by Thomas Peter/Reuters)





Ukrainians carry a National flag as they form a symbolic chain across a bridge, linking the left and right banks of Dnieper River in Kiev, Ukraine, 22 January 2018. The Ukraine is celebrating the anniversary of unification of East and West Ukraine in 1919. A historical armored car drive on a road along of people. (Photo by Sergey Dolzhenko/EPA/EFE)





Mayon volcano spews ash as it erupts anew Tuesday, January 23, 2018 as seen from Legazpi city, Albay province, southeast of Manila, Philippines. The Philippines' most active volcano ejected a huge column of lava fragments, ash and smoke in another thunderous explosion at dawn Tuesday, sending thousands of villagers back to evacuation centers and prompting a warning that a violent eruption may be imminent. (Photo by Bullit Marquez/AP Photo)





In this handout photo provided by Netflix, actors Lupita Nyong'o and Marcus Henderson attend the Netflix Hosts The SAG After Party At The Sunset Tower Hotel on January 21, 2018 in West Hollywood, California. (Photo by Handout/Photo by Netflix via Getty Images)





Actors Danielle Brooks and Dascha Polanco attend Netflix Hosts The SAG After Party At The Sunset Tower Hotel on January 21, 2018 in West Hollywood, California. (Photo by Rachel Murray/Getty Images for Netflix)





Actors Connie Britton (L) and Jack McBrayerattend People and EIF's Annual Screen Actors Guild Awards Gala sponsored by TNT and L'Oreal Paris at The Shrine Auditorium on January 21, 2018 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for Turner Image)