A prisoner from the Pedrinhas prison is carried to receive medical help after he was injured during a fight between rival gangs inside the jail, in Sao Luiz, capital of Maranhao state, January 8, 2014. The recent posting on a major Brazilian news website of a video filmed last December 17 by Pedrinhas prisoners of the decapitated and tortured bodies of rival inmates inside the jail has highlighted some of the problems present in the country's prison system which houses nearly twice as many prisoners as its capacity, according to official statistics. (Photo by Douglas Cunha/Reuters/O Estado do Maranhão)

In this undated photo made available by journal Nature on January 15, 2014, a northern bald ibis (Geronticus eremita) flies in Tuscany, Italy. A new study released Wednesday, January 15, 2014 says the birds choreograph the flapping of their wings, getting a boost from an updraft of air in the wake of the flapping wings by flying behind the first bird and off to the side. When a flock of birds take advantage of these aerodynamics, they form a V. (Photo by Markus Unsöld/AP Photo)

Liu Chunxia, a supporter of Xu Zhiyong, one of China's most prominent rights advocates, is detained by policemen while she gathers with other supporters nearby a court where Xu's trial is being held in Beijing January 22, 2014. When dozens of activists unfurled banners across the country last March and April calling for officials to disclose their assets, they did so at the urging of one of China's most prominent rights advocates, Xu Zhiyong. Xu, 40, stands trial on Wednesday on a charge of “gathering a crowd to disturb public order” punishable by up to five years in prison. His case will almost certainly spark fresh criticism from Western governments over Beijing's crackdown on dissent. (Photo by Kim Kyung-Hoon/Reuters)

A lady is seen posing for pictures with Tom and Jerry at a Tom and Jerry Exhibition in Taipei, Taiwan on January 4, 2022, as Covid situation remains stable in Taiwan. The exhibition of Tom and Jerry, which is a traditional and world renowned American animation of the entertainment Warner Brothers, will last until 28 Feb 2022. (Photo by Daniel Ceng Shou-Yi/ZUMA Press Wire/Alamy Live News)

People dressed in traditional costumes sing Christmas carols as they gather to celebrate Orthodox Christmas at a compound of the National Architecture museum in Kyiv, Ukraine on January 7, 2022. (Photo by Valentyn Ogirenko/Reuters)

Members of the police forces of Republic of Srpska march during a parade marking the 30th anniversary of the Republic of Srpska in Banja Luka, northern Bosnia, Sunday, January 9, 2022. This week Bosnian Serb political leader Milorad Dodik was slapped with new U.S. sanctions for alleged corruption. Dodik maintains the West is punishing him for championing the rights of ethnic Serbs in Bosnia – a dysfunctional country of 3.3 million that's never truly recovered from a fratricidal war in the 1990s that became a byname for ethnic cleansing and genocide. (Photo by Radivoje Pavicic/AP Photo)

Artists perform during the press photocall for the show “LUZIA” of Cirque du Soleil at Royal Albert Hall on January 11, 2022 in London, England. (Photo by Tristan Fewings/Getty Images)

Mali supporters cheer ahead of the Group F Africa Cup of Nations (CAN) 2021 football match between Mali and Mauritania at Stade de Japoma in Douala on January 20, 2022. (Photo by Charly Triballeau/AFP Photo)