The male big cat's death is 'extremely dangerous' for the species, warns an expert.
Only 80 big cats remain in the wild, but this alpha male has been courting three eligible females.
A stars of the show: a highly endangered Amur leopard, a Siberian tiger, a lynx and a wildcat.
New estimate puts number at 80, almost double some recent figures.
Amur leopards now number more than 100 for first time in decades, say experts.
Amazing new pictures show a endangered Amur leopard with a cub.
These animals are supposed 'not to roar' due to their throat physiology, but hear his fearsome 'big cat' caterwawl as he attracts a mate.
100-plus Amur leopards are living in the wild, a rise from only 30, and now they are set to get new protected territory to roam.
Experts delighted as camera records flirting between Amur leopards in the wild for the first time.
Male, female and two cubs spotted in Ak Cholushpa Nature Park in Altai Republic.