Tigers range in size from the diminutive Sumatrans, in which females weigh between 165 and 242 pounds and males weigh between 220 and 310 pounds, to the largest mainland tigers, such as Indians, in which females weigh between 220 and 352 pounds and males weigh between 396 and 570. Total length ranges from seven to 12 feet. The tiger's current distribution is a patchwork across Asia, from India to the Russian Far East. Tigers require large areas with forest cover, water, and suitable large ungulate prey such as deer and swine. With these three essentials, tigers can live from the tropical rainforests of Sumatra and Indochina to the temperate oak forest of the Amur River Valley in the Russian Far East.
Tigers also kill domestic animals such as cows and goats, and occasionally kill people.
The tiger hunts alone, primarily between dusk and dawn, traveling six to 20 miles in a night in search of prey. A typical predatory sequence includes a slow, silent stalk until the tiger is 30 to 35 feet from the selected prey animal followed by a lightening fast rush to close the gap. The tiger grabs the animal in its forepaws, brings it to the ground, and finally kills the animal with a bite to the neck or throat. After dragging the carcass to a secluded spot, the tiger eats. A tiger eats 33 to 40 pounds of meat in an average night, and must kill about once per week.