Extinct (EX) is a conservation status assigned by the International Union for the Conservation of Nature (IUCN) to species or lower taxa that no longer exist.

The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost by this point. Because the range of a species may be very large, it is difficult to determine the moment of extinction, and it is usually done retrospectively.

Examples of species that are extinct are; Golden Toad, Caribbean Monk Seal, and the Japanese Sea Lion.

Associated terms: extinction.

Also see:
Data Deficient
Least Concern
Near Threatened
Vulnerable
Endangered
Critically Endangered
Extinct in the Wild