Herc, a male black-footed ferret is still sedated after getting blood and semen drawn for testing at the U.S. Fish and Wildlife Service National Black-footed Ferret Conservation Center in Wellington, Colorado April 11, 2007. By 1980, it was believed that the black-footed ferret was extinct when a group of only 18 was discovered in Wyoming. With breeding taking place at the Conservation Center, the wild population is now around 500. REUTERS/Rick Wilking (UNITED STATES) REUTERS