Sumatran tigers 'clinging to survival' due to deforestation

An endangered breed of tiger is "clinging to survival" due to the destruction of its forest habitat, warns new research.

Living only on the Indonesian island of Sumatra, the Sumatran tiger - officially listed as "Critically Endangered" - is the only surviving sub-species of 'Island tigers' which included the now-extinct Javan and Bali tiger.

Conservationists say Sumatran tigers face "many challenges" to their continued existence in the wild, where they require a home range of 25,000 hectares (61,776 acres).