Six Rare Siberian Tiger Cubs Born In Russia

A lucky zoo in the Russian city of Barnaul added six rare Siberian tiger cubs to its collection.

The cubs were born at night on June 21-22 to a couple called Bagira and Sharkhan.

Siberian tiger cubs, also known as Amur tigers or Ussuri tigers are the world's northernmost tiger species. In the beginning of the 20th century the population of the Siberian tigers was declining with just dozens of animals inhabiting the Russian Far East. By 2015, the population increased to about 500, but scientists still consider the species endangered.