The Sumatran tiger is a dominant and carnivorous predator, hunting it's prey by stalking it until the Sumatran tiger has the opportunity to catch it off guard. Sumatran tigers primarily hunt larger mammals including deer, wild boar, cattle and goats.
Due to the size and power of the Sumatran tiger, it has no natural predators in its native environment. Humans that hunt the Sumatran tiger and habitat loss are the only threats to the Sumatran tiger.
After a gestation period of 3 to 4 months, the female Sumatran tiger gives birth to up to 5 cubs. Newborn Sumatran tiger cubs weigh about 1 kg (2 lb) and are blind and helpless. The mother feeds them milk for about 2 months and then the Sumatran tiger cubs are introduced to meat. Sumatran tiger cubs depend on their mother for the first 18 months and then they start hunting on their own.
Today, due to habitat loss caused by deforestation, and hunting by human poachers, the Sumatran tiger is considered to be a critically endangered species. Modern estimates suggest that the current wild Sumatran tiger population is as low as 400 to 500 individuals.