Extraordinary picture shows male leading female and cubs through Sikhote-Alin Biosphere Reserve in east Russia . Large adult male tigers usually have several mates within their territory and leave females to raise their cubs alone . Males are usually highly aggressive and can pose a threat to small cubs - killing those belonging to rival males . The Amur tiger is the largest subspecies of tiger, with an estimated population of around 100,000 animals spread across Russia, China, Mongolia, Korea and Japan. The new picture suggests that male tigers may play a far greater role in rearing cubs than was previously believed .
Extraordinary picture shows male leading female and cubs through Sikhote-Alin Biosphere Reserve in east Russia . Large adult male tigers usually have several mates within their territory and leave females to raise their cubs alone . Males are usually highly aggressive and can pose a threat to small cubs - killing those belonging to rival males . Amur tigers , also known as Siberian tigers , are critically endangered with less than 500 thought to be left in the wild . The new picture suggests that male tigers may play a far greater role in rearing cubs than was previously believed .