The population of the big cat in Russia has increased to 750, according to the foundation started by the president Russia’s population of Amur tigers, also known as Siberian tigers, is no longer under threat of extinction, the chair of the Amur Tiger Center announced on Wednesday. The foundation was launched in 2013 by Russian President Vladimir Putin, a long-time supporter of protecting the endangered animals. Over the past 13 years, conservation efforts have raised the number of the big cats