May 7, 2014
![Mango, a Syrian brown bear, is prepared for back surgery in the Ramat Gan Zoological Center's animal hospital near Tel Aviv, Israel.](https://gdb.voanews.com/ea8d59b9-3912-48cc-936a-d1cf4d694b6b_w1024_q10_s.jpg)
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Mango, a Syrian brown bear, is prepared for back surgery in the Ramat Gan Zoological Center's animal hospital near Tel Aviv, Israel.
![Facebook employees take a group selfie with Argentine President Cristina Fernandez, center, at the Facebook office in Buenos Aires, Argentina, May 6, 2014.](https://gdb.voanews.com/726ac11e-27dd-4e9f-98e3-5c54f8686d1a_w1024_q10_s.jpg)
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Facebook employees take a group selfie with Argentine President Cristina Fernandez, center, at the Facebook office in Buenos Aires, Argentina, May 6, 2014.
![Armed paramilitary police officers stand guard at Beijing Railway Station. An assailant stabbed six people at a railway station in the southern Chinese city of Guangzhou, police and state media said.](https://gdb.voanews.com/d58bbd3e-ab43-49da-bf80-790ddfa210a2_w1024_q10_s.jpg)
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Armed paramilitary police officers stand guard at Beijing Railway Station. An assailant stabbed six people at a railway station in the southern Chinese city of Guangzhou, police and state media said.
![A model poses with a vivid yellow 100.09 carat diamond (L) and a 103.46 carat diamond ring during an auction preview at Sotheby's in Geneva, Switzerland. The diamonds are expected to be go for between $15,000,000 to 25,000,000 and $3,500,00 to 5,000,000.](https://gdb.voanews.com/e859f283-3c1d-4163-81c8-1752b6ca3f15_w1024_q10_s.jpg)
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A model poses with a vivid yellow 100.09 carat diamond (L) and a 103.46 carat diamond ring during an auction preview at Sotheby's in Geneva, Switzerland. The diamonds are expected to be go for between $15,000,000 to 25,000,000 and $3,500,00 to 5,000,000.