尊重版权，原文如下——
It is estimated that only between 500-600 Sumatran tigers remain in the wild, andthe actual number may be as low as 400. And their population is dwindling rapidly.
A 1978 a tiger census reported around 1,000 Sumatran tigers still in the wild. This means over the last 25 years, the population of Sumatran tigers has been cut in half.
The Sumatran tiger is considered to be a ‘critically’ endangered species.
The Sumatran tiger is found only on the Indonesian island of Sumatra off the Malaysian Peninsula. Their habitat ranges from lowland forest to mountain forest and includes evergreen, swamp and tropical rain forests.
In recent years Sumatra has seen a great deal of agricultural growth and this has fragmented the tigers habitat. Most of the remaining Sumatran tigers now live in five National Parks, two Game Reserves, though around 100 live in an unprotected area that will most likely be lost to agriculture in the near future.
This destruction of habitat is considered the greatest threat to the survival of the Sumatran tiger, followed by poaching. The tigers are especially vulnerable to poaching in the ‘unprotected’ areas.
Although it is illegal to hunt Sumatran tigers, this has not stopped the poaching of these animals for tiger products. China is considered the largest consumer and producer of manufactured products containing tiger parts, though tiger bones and other tiger products have been found in Taiwan and South Korea, and in North American cities.
If they are to survive, or not be an endangered species, then people need to have the wisdom to see the Sumatran tiger's place in the world and in a culture.

正如同后文，如果人类不觉悟，苏门答腊虎会消失在世界上。

是的，野外的苏门答腊虎连400只都不到了……

补充一点东西：
Threats:
Reports estimate that deforestation and agricultural conversion has resulted in the clearing of about 30 million acres (12 million hectares) of Sumatran forest in the past 22 years, a loss of nearly 50 percent. In addition to deforestation, the Sumatran tiger is also threatened by habitat fragmentation, which occurs even in protected areas (though to a lesser extent than in unprotected regions). The encroachment into tiger habitat has triggered increasingly frequent and deadly conflicts between humans and tigers. And poaching and illegal trade in tiger parts (ground bone for folk cures, genitalia for food and skin for fur) continues to pose an enormous threat. According to a report by Shepherd and Magnus, from 1998 to 2002 at least 51 tigers per year were killed, 76 percent for trade and 15 percent because of human-tiger conflict. A 2007 survey by Ng and Nemora found the parts of at least 23 tigers for sale in markets around the island of Sumatra. Predators include hawks and other raptors, wild cats and large snakes.
翻译：
报告估计，砍伐森林和农业的转换导致大约30000000英亩（12000000公顷）被毁坏.苏门答腊森林在过去的22年中，损失了近百分之50。除了砍伐森林，苏门答腊虎也受到栖息地破碎化的威胁，甚至发生在保护区（尽管在较小的程度比未受保护的地区）。侵犯了老虎的栖息地已经引发了越来越多的人类和老虎之间的冲突。偷猎和非法老虎器官的贸易（民间疗法，地骨生殖器皮食物和皮肤）继续构成巨大威胁。根据牧羊犬和大的报告，从1998到2002，每年至少有51只老虎被杀，贸易和百分之15百分之76因为人虎冲突。2007的一项调查由吴和nemora在苏门答腊岛的市场发现至少有23只老虎出售的部分。食肉动物包括鹰和其他猛禽，野生猫和大的蛇。
本楼英文由温柔的慈悲AK提供翻译。

在这个人类统治的星球上，这些顶级掠食者成了“被捕食者”。