The Siberian tiger , also known as the Amur tiger, is a tiger subspecies inhabiting mainly the Sikhote Alinmountain region with a small population in southwest Primorye Province in the Russian Far East . The Siberian tiger and Bengal subspecies rank among the biggest living cats. A comparison of data on body weights of Siberian tigers indicates that up to the first half of the 20th century both males and females were on average heavier than post-1970 ones. Today's wild Siberian tigers are smaller than Bengal tigers. Their reduced weight as compared to historical Siberian tigers may be due to a combination of causes: when captured, they were usually sick or injured and involved in a confict situations with people.
The Siberian tiger and Bengal subspecies rank among the biggest living cats. A comparison of data on body weights of Siberian tigers indicates that up to the first half of the 20th century both males and females were on average heavier than post-1970 ones. Today's wild Siberian tigers are smaller than Bengal tigers. Their reduced weight as compared to historical Siberian tigers may be due to a combination of causes: when captured, they were usually sick or injured and involved in a confict situations with people.