Sumatra, Indonesia, is the habitat of the Sumatran tiger. More than half of the tropical forest, which was 25.4 million hectares in 1985, has already disappeared. The land has been converted into plantations for trees used to make paper and palm plantations to produce palm oil. Wildlife that have lost their habitats in this way are being killed by people in plantations and villages, or poached in forests that have shrunk significantly and become easier for people to enter, forcing them into a corner.

In addition, crimes such as poaching for tiger bones, which are used to make expensive medicine, and illegal smuggling of these bones are rampant, and bones and furs from at least 1,755 tigers were seized in various parts of Asia between 2000 and 2015.

It is said that there are only about 3,000 wild tigers left on Earth, including other subspecies.