August 12, 2014

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A Yemeni health worker gives the polio vaccine to a child during a house-to-house polio immunization campaign in Sana'a.

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Newborn giant panda triplets, which were born to giant panda Juxiao (not pictured), are seen inside an incubator at the Chimelong Safari Park in Guangzhou, Guangdong province, China.

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Police wearing riot gear walk toward a man with his hands raised in Ferguson, Missouri, USA, Aug.11, 2014. Authorities have made several arrests in Ferguson, where crowds have looted and burned stores, vandalized vehicles and taunted police after a vigil for an unarmed black man who was killed by police.

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Flowers are placed in memory of actor and comedian Robin Williams on his Walk of Fame star in the Hollywood district of Los Angeles, California, USA, Aug. 11, 2014. Williams, the Academy Award winner and comic supernova died in an apparent suicide at his San Francisco Bay area home. He was 63.