This photo taken in 1993 and released by WWF shows a Saola in Vietnam when it was captured. It was one of two Saola captured alive in central Vietnam, but both died months later in captivity. Saola, one of the rarest and most threatened mammals on earth has been caught on camera in Vietnam for the first time in 15 years in September in central Vietnam, renewing hope for the recovery of the species, international conservation group WWF said Wednesday, Nov. 13, 2013. (AP Photo/WWF)
