Russia-backed rebels pose by a road sign at the entrance in Debaltseve, Ukraine, Friday, Feb. 20, 2015, after checking the access road into town for mines left behind by retreating Ukrainian government troops. After weeks of relentless fighting, the embattled Ukrainian rail hub of Debaltseve fell Wednesday to Russia-backed separatists, who hoisted a flag in triumph over the town. The Ukrainian president confirmed that he had ordered troops to pull out and the rebels reported taking hundreds of soldiers captive. (AP Photo/Vadim Ghirda)

Cats crowd the harbour on Aoshima Island in the Ehime prefecture in southern Japan February 25, 2015. An army of cats rules the remote island in southern Japan, curling up in abandoned houses or strutting about in a fishing village that is overrun with felines outnumbering humans six to one. Picture taken February 25, 2015. REUTERS/Thomas Peter