Around 18% of Amur tigers die from natural causes, including injuries sustained while hunting, which means nearly one-fifth of the population is lost annually without human interference, Sergey Aramilev, director of the Amur Tiger center, told TASS.

The life of the largest member of the cat family in the Russian Far East involves constant physical exertion and a high risk of injury, he said, adding that the risk of injury stems not only from clashes during the hunt but also from confrontations with large animals.