Manning in 1945. She and dozens of other nurses were freed by U.S. forces earlier that year. U.S. Army Signal Corps hide caption

itoggle caption U.S. Army Signal Corps

A file photo from 2011 shows a man touching a giant bronze sculpture of a mammoth in the Siberian city of Khanty-Mansiysk. A team of Russian and South Korean scientists who found a well-preserved frozen woolly mammoth carcass this month say it also included blood. Natalia Kolesnikova/AFP/Getty Images hide caption

itoggle caption Natalia Kolesnikova/AFP/Getty Images

A typical Swedish meal of fried herring and lingonberries includes some of the local ingredients of the healthy Nordic diet prescribed in a new study. iStockPhoto.com hide caption

itoggle caption iStockPhoto.com

Rio's Operations Center brings together more than 30 agencies and allows them to coordinate on daily issues such as traffic, as well as on emergencies such as the frequent flash floods in hillside slums. Raphael Lima/Courtesy of the Operations Center, City of Rio De Janeiro hide caption

itoggle caption Raphael Lima/Courtesy of the Operations Center, City of Rio De Janeiro

This photo shows a heavily logged concession affiliated with Asia Pulp and Paper, or APP, one of the world's largest papermakers, on the Indonesian island of Sumatra, in 2010. Romeo Gacad/AFP/Getty Images hide caption

itoggle caption Romeo Gacad/AFP/Getty Images

A Syrian soldier walks through the hotly contested city of Qusair on May 22. The Syrian army, backed by Lebanon's Hezbollah militia, has been waging a fierce fight with rebels in the key western city for the past two weeks. STR/STR/AFP/Getty Images hide caption

itoggle caption STR/STR/AFP/Getty Images