In this frame grab taken from video provided by the Syrian anti-government activist group Aleppo Media Center (AMC), 5-year-old Omran Daqneesh sits in an ambulance after being pulled out of a building hit by an airstrike in Aleppo, Syria, on Aug. 17, 2016. The White Helmets were among the crowd of first responders who pulled Daqneesh and his family from the rubble of their apartment building.
24The Year in Pictures 2016
A visitor to the Muhammad Ali Center in Louisville, Ky., looks at an image of the great boxer posted on a makeshift memorial on June 9, 2016. Ali, born Cassius Clay, died on June 3 at age 74.
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34The Year in Pictures 2016
Rowers are seen through a screen decorated with the Olympic rings as they practice at the rowing venue in Lagoa at the 2016 Summer Olympics in Rio de Janeiro, Brazil, on Aug. 7, 2016.
44The Year in Pictures 2016
Udai Faisal, an infant who is suffering from acute malnutrition, is hospitalized at Al-Sabeen Hospital in Sanaa, Yemen, on March 22, 2016. Udai died on March 24. Hunger has been the most horrific consequence of Yemen's conflict and has spiraled since Saudi Arabia and its allies, backed by the U.S., launched a campaign of airstrikes and a naval blockade a year ago.