Video: Endangered Sumatran rhino born in Indonesia The birth is raising conservationists' hopes for the continued existence of the critically endangered species in Indonesia. "The male Sumatran rhino was born at Way Kambas National Park on June 23 - only the fourth such event since the conservation breeding efforts began in Asia," Indonesia's forestry minister Zulkifli Hasan said. There are an estimated 200 Sumatran rhinos living in the wild in small groups in Indonesia and Malaysia, half the number of 15 years ago. Another 10 live in captivity, including Ratu, the mother of the new arrival, and four others in a rhino sanctuary at the Way Kambas National Park. "The rhino birth will be a milestone for the conservation of the Sumatran rhinoceros and is expected to increase confidence in the international community and government efforts to conserve endangered species in Indonesia, especially rhinos," Mr Hasan added. Sumatran rhinos are the smallest rhino species, standing little more than 4 feet at the shoulder. They are the most endangered of all rhinoceros because of their rapid rate of decline.