A two-month-old ocelot cub is pictured in the Siberian city of Krasnoyarsk in Russia in this November 22, 2006, file photo. The unexplained death of a breeding-age ocelot in southeast Texas has brought the endangered cat a step closer to extinction in the United States, a wildlife biologist said July 12, 2007. The U.S. population of the northern subspecies of the cat, known as the Texas ocelot, is down to around 100 or fewer. And the remains of the male one found Sunday in the Laguna Atascosa National Wildlife Refuge means there is one less. REUTERS/Ilya Naymushin/Files (RUSSIA)