Sumatran tiger (Panthera tigris sumatrae) is only found on the island of Sumatra in Indonesia, is one of six sub-species of tigers that still survive today and are included in the classification of critical wildlife threatened with extinction (critically endangered) in the red list of endangered species is released IUCN World Conservation Institute. The wild population is estimated between 400-500 animals, especially living in national parks in Sumatra. Sophisticated genetic testing has revealed genetic markers unique, indicating that this subspecies may evolve into separate species, if managed sustainably.
Sumatran tigers are the smallest tiger subspecies. Sumatran tiger has the darkest color among all other tiger subspecies, the black pattern width and the distance is sometimes tightly attached. Male Sumatran tigers average length 92 inches from head to tail, or about 250 cm long from head to foot with the weight 300 pounds or about 140kg, while the height of adult males can reach 60 cm. Females average 78 inches in length or about 198cm and weighs 200 pounds or approximately 91 kg. Sumatran tiger stripe is thinner than other tiger subspecies. Sumatran Tiger skin color is the darkest of all tigers, ranging from the yellow-red to dark orange. This subspecies also had more beard and mane than other subspecies, especially the male tiger. Their small size makes it easier to explore the jungle. There is a membrane in between her fingers that made them able to swim fast. Tigers are known to corner their prey into the water, especially if the prey animal is a slow swimmer. Fur changed color to dark green when giving birth.
Sumatran tiger is found only on Sumatra island. This big cat can live anywhere, from lowland forests to mountain forest, and lived in many places are not protected. Only about 400 individuals live in nature reserves and national parks, and the rest scattered in other areas are cleared for agriculture, there are also approximately 250 males were reared in zoosall over the the world . Sumatran tigers face threats will lose their habitat because the area of its spread, such as blocks of lowland forest, peat and threatened mountain rain forest clearing for agricultural land and commercial plantations, as well as encroachment by logging and road construction activities. Due to the increasingly narrow habitat and decreases, the tigers were forced into areas closer to humans, where often they were killed and arrested for entering rural areas or lost due to an accidental encounter with humans.