Siberian tiger

The geographical range of Amur tigers in the Russian Far East stretches south to north for almost 1,000 km (620 mi) throughout the length of Primorsky Krai and into southern Khabarovsk Krai east and south of the Amur River. They also occur within the Eastern Manchurian mountain system, which crosses into Russia from China at several places in southwest Primorye. In both regions, peaks are generally 500 to 800 m (1,600 to 2,600 ft) above sea level, with only a few reaching 1,000 m (3,300 ft) or more. This region represents a merger zone of two bioregions: the East Asian coniferous-decidous complex and the northern boreal complex, resulting in a mosaic of forest types that vary with elevation, topography and past history. Key habitats for the Amur tiger are Korean pine broadleaf forests with a complex composition and structure. The ungulate complex is represented by red deer, wild boar, sika deer, roe deer, Manchurian moose, musk deer and ghoral.
The number of Amur tigers in China is estimated at 18–22, and it is not known if any still survive in North Korea. In 2005, there were 331–393 Amur tigers in the Russian Far East, comprising a breeding adult population of about 250, fewer than 100 likely to be sub-adults, more than 20 likely to be less than 3 years of age. More than 90% of the population occurs in the Sikhote Alin mountain region.