Russian President Vladimir Putin gestures during his annual news conference in Moscow, Russia, on Thursday, where he blamed Western sanctions and falling oil prices on his country's economic troubles. Pavel Golovkin/AP hide caption

itoggle caption Pavel Golovkin/AP

A customer picks up a block of butter at a food store in Tokyo on Nov. 10. Japanese shoppers are up in arms over a serious butter shortage that has forced Tokyo to resort to emergency imports, as some grocers limit sales to one block per customer. Yoshikazu Tsuno/AFP/Getty Images hide caption

itoggle caption Yoshikazu Tsuno/AFP/Getty Images

Najin, a female northern white rhino, gets a pat from keeper Mohamed Doyo. Najin, who lives at the Ol Pejeta Conservancy in Kenya, is one of only five of its subspecies left in the world. Ben Curtis/AP hide caption

itoggle caption Ben Curtis/AP