The Sumatran Orangutan Conservation Programme (SOCP) has confirmed the birth of a healthy male infant to Bulan, a rehabilitated female Sumatran orangutan released into the Jantho Nature Reserve in Aceh, Indonesia, in 2018.

The birth was confirmed on May 22, 2026 when SOCP post-release monitoring teams observed Bulan carrying her infant through the forest canopy. The baby is estimated to be approximately one month old and appeared to be in good health.

Bulan, and her infant, Badar (© 2026, SOCP – Andi Saputra)

Bulan was rescued from the illegal wildlife trade in Aceh in December 2014 when she was approximately two years old. Following four years of rehabilitation at the SOCP Orangutan Quarantine and Rehabilitation Centre in Sibolangit, North Sumatra, she was returned to the wild in 2018.

“During our observation, Bulan appeared active and highly protective of her infant. The baby appeared healthy and remained in close contact with its mother throughout the observation period,” said Hafiz, Manager of the Jantho Orangutan Reintroduction Centre.

Successful reproduction in the wild is one of the strongest indicators that rehabilitated orangutans have adapted to their natural environment and are contributing to the recovery of wild populations.

“From being a victim of the illegal wildlife trade to becoming a mother in the wild, Bulan’s journey demonstrates the long-term value of orangutan rehabilitation and reintroduction,” said M. Yakob Ishadamy, Conservation Director of Yayasan Ekosistem Lestari (YEL). “However, achievements such as this can only continue if the forests orangutans depend on remain protected.”

The infant has been named Badar by Indonesia’s Minister of Forestry, Raja Juli Antoni. The name means “full moon” in Indonesian, reflecting hope for the future of one of the world’s most threatened great apes.

The Sumatran orangutan (Pongo abelii) is classified as Critically Endangered on the IUCN Red List. Habitat loss, fragmentation, and the illegal wildlife trade continue to threaten the species throughout its remaining range.

The birth of Bulan’s infant provides another encouraging sign that rescued orangutans can successfully return to the wild and contribute to the future of their species.

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