The Amur cubs were specially trained to cope after being raised in Zhelundinsky Nature Reserve.
Kitten is one of the world’s rarest big cats, with only 91 known adults surviving in the wild.
The male big cat's death is 'extremely dangerous' for the species, warns an expert.
More than a dozen animals killed by self-appointed executioner and dumped by a river near lakeside town.
New Russian national park, aimed at saving endangered big cats has won praise from Prince Michael of Kent.
Endangered Amur tigers are protected under President Vladimir Putin's special project.
Tigre de Cristal under fire for 'abusing' rare big cat to promote gambling revolution.
Big cat Leo80M - also called Nikolay - prepares for flight to Moscow and 'noble mission'.