Sumatran tigers live about 12 years in the wild and up to 20 years in captivity. The subspecies is critically endangered with less than 400 still living in the wild.
The Sumatran tiger is the smallest living tiger subspecies and is closely related to the extinct Bali tiger and Javan tiger. Genetic analysis indicates that it has been isolated from other tiger populations for at least 6,000 years. It is native to lowland forests, mountain forests and peat moss forests on the island of Sumatra in Indonesia. Habitat destruction, depletion of the tigers' prey base and poaching continue to reduce the tigers' population despite strict anti-poaching laws and increased conservation efforts by the Indonesian government.