New estimate puts number at 80, almost double some recent figures.
Experts delighted as camera records flirting between Amur leopards in the wild for the first time.
Emaciated animal walked 1500km south and away from Arctic Ocean, searching for food.
The unnamed hunter shot and wounded a bear in a the forest in Khanty-Mansi Autonomous Okrug.
State of emergency called but locals are told they cannot shoot endangered species scavenging for food at local dump.
One of only 500 of the largest cats in the world left in the Siberian wild is gunned down in Kharbarovsk region.
Moments later he is filmed running at top speed when the beast attacks.
Three months of rehabilitation deemed a success as the female pair swim off back into the water.
The fatality occurred after the unnamed man handled the carcass of an infected cow in the Tselinniy district of Altai territory.