The unusual big cats were born to ligress Zita, a cross between an African lion and a Bengal tigress.
Conservationists and experts due to meet over what to do with animal listed as most endangered big cat in the world.
Amazing new pictures show a endangered Amur leopard with a cub.
The wild cat jumped on its victim from behind as she queued at the ticket kiosk.
Dozens of captive red and sika deer were released into the wild in a bid to coax the threatened Siberian tiger - the world's largest cat - back to China.
A few years ago only 30 were living in the wild, but now there is a realistic chance to avoid extinction.
How a poacher turned gamekeeper is helping the survival of these endangered cats.
Sinister teenagers hide behind Guy Fawlkes masks as they carry out acts of violence against helpless cat.
Kiara, born to a ligress and a lion, is so unusual that no-one seems sure what to call her.