A Zanzibari child poses for the camera after a swim in the Indian Ocean in Zanzibar, Tanzania, on Tuesday, Jan. 20, 2015. (AP Photo/Mosa'ab Elshamy)
A Zanzibari child poses for the camera after a swim in the Indian Ocean in Zanzibar, Tanzania, on Tuesday, Jan. 20, 2015. (AP Photo/Mosa'ab Elshamy). Mosa'ab Elshamy
Men get out of the ice cold water after plunging into it to mark Epiphany in Minsk, Belarus on Monday, Jan. 19, 2015. Thousands of Russian Orthodox Church followers will plunge into icy rivers and ponds across the country to mark Epiphany, cleansing themselves with water deemed holy for the day. More of Sergei Grits’ work can be seen here. © AP Photo/Sergei Grits
A Russian backed separatist rebel takes cover in a shelter from shelling in the Kievsky district, 3 km from the Airport, in Donetsk, Ukraine on Thursday, Jan. 22, 2015. A mortar shell hit a bus in the eastern Ukrainian rebel stronghold of Donetsk on Thursday, killing at least 13 people, the separatist leader in the city said. It was unclear immediately which side was responsible for the attack, which killed passengers instantly and blew out the windows of a nearby building. See more of Manu Brabo’s work here. © AP Photo/Manu Brabo
An injured person is transported to an ambulance after a shooting, at the French satirical newspaper Charlie Hebdo’s office, in Paris on Wednesday, Jan. 7, 2015. Masked gunmen stormed the offices of a French satirical newspaper Wednesday, killing at least 11 people before escaping, police and a witness said. The weekly has previously drawn condemnation from Muslims. © AP Photo/Thibault Camus
A Zanzibari child poses for the camera after a swim in the Indian Ocean in Zanzibar, Tanzania, on Tuesday, Jan. 20, 2015. See more of Mosa’ab Elshamy’s work here. © AP Photo/Mosa’ab Elshamy
Crewmembers of Indonesian Air Force NAS 332 Super Puma helicopter look out of the windows during a search operation for the victims and wreckage of AirAsia Flight QZ 8501 over the Java Sea, Indonesia on Monday, Jan. 5, 2015. The Singapore-bound plane crashed into the sea 42 minutes after taking off on Dec. 28. See more of Tatan Syuflana’s work here. © AP Photo/Tatan Syuflana, Pool
Some police officers turn their backs as Mayor Bill de Blasio speaks during the funeral of New York Police Department Officer Wenjian Liu at Aievoli Funeral Home on Sunday, Jan. 4, 2015, in the Brooklyn borough of New York. Liu and his partner, officer Rafael Ramos, were killed Dec. 20 as they sat in their patrol car on a Brooklyn street. The shooter, Ismaaiyl Brinsley, later killed himself. John Minchillo is a photographer based in New York. See more of his work here. © AP Photo/John Minchillo
Kids do their homework inside the courtyard of an apartment building in Havana, Cuba on Monday, Jan. 19, 2015. Cuba has so far offered a guardedly positive reception to President Barack Obama’s loosening of the trade embargo on Cuba, saying it welcomes the full package of new economic ties on offer, but it insists it will maintain its one-party political system and centrally planned economy. See more of Ramon Espinosa’s work here. © AP Photo/Ramon Espinosa
A Kashmiri boy plays on a swing in Srinagar, India on Thursday, Jan. 15, 2015. Set in the Himalayas at 5,600 feet above sea level, Kashmir is a green, saucer-shaped valley surrounded by snowy mountain ranges with over 100 lakes dotting its highlands and plains. See more of Mukhtar Khan’s work here. © AP Photo/Mukhtar Khan
A masked demonstrator takes part in a protest to demand the resignation of President Michel Martelly, in Port-au-Prince, Haiti on Saturday, Jan. 17, 2015. The protest was the latest in a series of demonstrations demanding Martelly leave office before his term expires next year. See more of Dieu Nalio Chery’s work here. © AP Photo/Dieu Nalio Chery
Little girl holds a candle at a memorial rally to commemorate the victims of the Nazi concentration camp Auschwitz on the 70th anniversary of its liberation, in Terezin, about 70 kilometers north of Prague, Czech Republic on Tuesday, Jan. 27, 2015. Terezin was the seat of a concentration camp and an internment ghetto for European Jews during the war. Many Terezin prisoners were transported to Oswiecim. © AP Photo/CTK, Michal Kamaryt
Homeowners sit in a conference room in Detroit’s Cobo Center while waiting for their cases to be heard to avoid foreclosure from tax debts in Detroit on Thursday, Jan. 29, 2015. Hundreds of Detroit homeowners at risk of losing their property are flocking to hearings that offer them a last-ditch chance to avoid foreclosure. See more of Paul Sancya’s work here. © AP Photo/Paul Sancya
Penguins swim in their pool during the annual stock take at London Zoo on Monday, Jan. 5, 2015. Caring for more than 750 different species, London Zoo keepers started the New Year with the task of counting every single animal. With three Sumatran tiger cubs adding vital numbers to the European conservation breeding program, the birth of six critically-endangered Philippine crocodiles and the arrival of nine Humboldt penguin chicks, all of the new additions will be added to the records. See more of Kirsty Wigglesworth’s work here. © AP Photo/Kirsty Wigglesworth

Our Photojournalism of the Month gallery highlights moments of exceptional documentary photography, curated from the daily output of wire photographers from around the world. Want more photojournalism? Check out our round-ups from October 2014, November 2014 and The Best Photojournalism of 2014.