The 2012 World Press Photo of the year by Samuel Aranda, Spain, for The New York Times, shows a woman holding a wounded relative during protests against president Saleh in Sanaa, Yemen, Oct. 15, 2011.
The 1st prize Nature Stories category of the 2012 World Press Photo contest by Brent Stirton, South Africa, Reportage by Getty Images for National Geographic magazine shows "Rhino Wars", Tugela Private Game Reserve, Colenso, Natal, South Africa, Nov. 9 2010. A female rhino, left, in Natal, South Africa, that four months earlier survived a brutal dehorning by poachers who used a chainsaw to remove her horns and a large section of bone in this area of her skull.
The 1st prize Contemporary Issues Singles category of the 2012 World Press Photo contest by Brent Stirton, South Africa, Reportage by Getty Images for Kiev Independent, shows Maria, a drug addict and sex worker, in between clients in a room she rents in Kryvyi Rig, Ukraine. Maria injects drugs on a daily basis and sees many men every week but claims she remains HIV negative. She says she need the money to support herself, her drug habit and her nine-year-old daughter.
The 1st prize General News Singles category of the 2012 World Press Photo contest by Alex Majoli, Italy, Magnum Photos for Newsweek shows protesters cry, chant and scream in Cairo's Tahrir Square, after listening to the speech in which Egyptian President Hosni Mubarak said he would not give up power in Cairo, Egypt, Feb. 10, 2011.
The 1st Prize Portraits Singles category of the 2012 World Press Photo Contest by Laerke Posselt, Denmark, shows Iranian-born Danish actress Mellica Mehraban, Copenhagen, May 4, 2011.
The 1st prize Arts and Entertainment Stories category of the 2012 World Press Photo contest by Rob Hornstra, The Netherlands shows the Sochi Project: Sochi Singers Marika Bajur sings 'Kuriu' in the restaurant Eurasia.
The 1st prize Daily Life Singles category of the 2012 World Press Photo contest by Damir Sagolj, Bosnia and Herzegovina, Reuters, shows a picture of North Korea's founder, Kim Il-sung, decorating a building in the capital Pyongyang, North Korea, Oct. 5, 2011.
The 1st prize Nature Singles category of the 2012 World Press Photo contest by Jenny E. Ross, USA. Novaya Zemlya, Russia, shows a male polar bear climbing precariously on the face of a cliff above the ocean at Ostrova Oranskie in northern Novaya Zemlya, attempting to feed on seabird eggs.
The 1st prize Daily Life Stories of the 2012 World Press Photo contest by Alejandro Kirchuk, Argentina "Never Let You Go". Marcos leads Monica from their room to the living room in Buenos Aires. Monica was diagnosed with Alzheimer's disease.
The 2nd prize Arts and Entertainment Singles category of the 2012 World Press Photo contest by Vincent Boisot, France, Riva Press for Le Figaro Magazine, shows a model posing in front of tailor stalls in the center of Dakar, Senegal, July 9, 2011. She wears the creation of a designer, Yolande Mancini, participating in the 9th edition of Dakar Fashion Week.
The 2nd prize People in the News Singles category of the 2012 World Press Photo contest by Tomasz Lazar, Poland shows the arrest of protesters in Harlem, New York City, during a demonstration against police tactics and income inequality, Oct. 25, 2011.
The 2nd prize General News Stories category of the 2012 World Press Photo contest by Paolo Pellegrin, Italy, Magnum Photos for Zeit Magazin shows the tsunami aftermath, in Japan, April 14, 2011.
The 2nd prize Spot News Stories of the 2012 World Press Photo contest by Niclas Hammerstrom, Sweden, for Aftonbladet in Utoya, Norway, July 22, 2011. Anders Behring Breivik killed 69 people on July 22 on the small island of Utoya outside Oslo in Norway.
The 2nd prize Sports Singles category of the 2012 World Press Photo contest by Ray McManus, Ireland, Sportsfile shows action from a rugby match between Old Belvedere and Blackrock, Dublin, Ireland, Feb. 5, 2011.
The 2nd prize Portraits Stories category of the 2012 World Press Photo Contest by Ton Koene, The Netherlands shows a recruit at a police training center, Kunduz, Afghanistan, Sept. 28, 2011.
The 2nd prize Sports Stories category of the 2012 World Press Photo contest by Adam Pretty, Australia, Getty Images shows divers practicing during the 14th FINA World Championships at the Oriental Sports Center in Shanghai, China, July 17, 2011.