Endangered Sumatran rhino gives birth in Indonesia

Ratu, a 14-year-old Sumatran rhinoceros, sits next to its newborn calf at Sumatran Rhino Sanctuary in Way Kambas. Photo / AP

A Sumatran rhinoceros has given birth at an Indonesian sanctuary in a success for efforts to save the critically endangered species.

The International Rhino Foundation said the female calf was born on Thursday, weighs about 45 pounds (20 kilograms) and looks healthy and active.

"We haven't stopped smiling since the moment we were sure she was alive and healthy," said IRF's executive director Susie Ellis in a statement. "While one birth does not save the species, it's one more Sumatran rhino on Earth."

Only an estimated 100 Sumatran rhinos remain, mostly on the island of Sumatra, and nine are in captivity.

The species was rediscovered in the Indonesian part of Borneo through their trails and footprints in 2013.

But one member of that small population on Borneo died in April after a wound from a poacher's trap became infected.

The calf is the second to its mother Ratu, who gave birth to a male named Andatu in 2012.