The Indochinese Tiger (Panthera tigris ssp. corbetti) has officially been declared Functionally Extinct in Cambodia, with no young wild individuals recorded since 2007.
Functionally Extinct means that there may be a population left but they are unable to breed, and are therefore the last population left.
This already rare subspecies is listed as Endangered on the IUCN Redlist, as of 2011. With this news, the liklihood of this species being upgraded to Critically Endangered is extremely high.
The Cambodian director of WWF today released a plan to reintroduce viable populations of this subspecies (most likely populations that were bred in captivity for conservation) into the Cambodian forests where it once roamed in the hundreds or thousands.
There is no point in putting more individuals in the wild until the threats are seriously reduced. The biggest threat? Poaching. Africa is doing an incredible job of building anti-poaching teams and training rangers well. Asia needs the same programs and support, and it needs it now!