The rare arrival took place at the Sumatran Rhino Sanctuary in the Way Kambas National Park in Sumatra province , making Indonesia the third country to have successfully bred the species in captivity . Sumatran was born in Indonesia , the fifth known to have been bred in captivity ever . Indonesia is now the third country to have successfully bred the species in captivity . Less than 200 Sumatran rhinos remain in the world , making it the most endangered of all rhino species .
Sumatran was born in Indonesia , the fifth known to have been bred in captivity ever . Indonesia is now the third country to have successfully bred the species in captivity . Less than 200 Sumatran rhinos remain in the world , making it the most endangered of all rhino species .