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Inung was first released into the wild in 2013, at the age of 15, alongside her two young daughters, Indah and Ina. Since her release, Inung has adapted remarkably well to life in the forest. Over the years, she has successfully raised and given birth to four infants in Batikap, a testament to her resilience and the effectiveness of the rehabilitation program.

Read more: Inung Surprises Monitoring Team with a Baby!

By 2025, Inung’s story reached a new milestone. She is now often seen accompanied by her two youngest children, Indie and Indro, who faithfully follow her explorations through the forest. Their daily lives continue to overlap with Totat Jalu Monitoring Camp, where researchers and monitoring teams carry out their conservation work.

Scientific studies have highlighted that orangutans’ ability to adapt post-release is strongly influenced by their life history and learning experiences. Inung’s successful reintroduction into the wild illustrates how structured rehabilitation can prepare orangutans for survival in their natural habitat.

2025: A Year of Encounters

In 2025, the Post-Release Monitoring (PRM) Team observed Inung three times in March, May, and July.

March: Inung was spotted carrying her two youngest, Indie and Indro, near the Totat Jalu Monitoring Camp. She was seen enjoying cassava planted near the camp before moving to her favourite guava tree, where she and her young ones fed leisurely.

May: Inung returned, calmly foraging on bamboo and lunuk fruit. That evening, she chose to reuse and repair an old nest rather than build a new one, a behaviour that demonstrates orangutans’ resourcefulness in conserving energy and materials. This aligns with observations that orangutans often exhibit innovative survival strategies.

July: Inung and her two youngsters appeared once more, this time resting for long periods in a Sterculia tree before later building a new nest in a fig tree (Ficus variegata). Meanwhile, Indie, her adolescent daughter, showed early signs of independence by crafting her own nest and even playing creatively with nearby branches. This behaviour highlights how Inung successfully teaches her offspring the evidence survival skills for life in the wild.

According to research on orangutan rehabilitation, the development of foraging and nest-building skills in young orangutans is a critical step toward successful independence in the wild.

A Symbol of Conservation Success

Inung’s story is not just about her survival. It represents the broader success of orangutan reintroduction programs. Orangutan conservationists stress that long-term survival in the wild is the true measure of success, not simply the act of release.

Read more: Unexpected Orange Visitors

The fact that Inung has raised four offspring in the wild proves that reintroduced orangutans can establish sustainable generations. Indie’s growing independence and Indro’s ongoing learning under their mother’s care further emphasize the long-term impact of successful rehabilitation.

Their resilience and adaptability are key traits that determine whether rehabilitated orangutans thrive after release. Inung embodies both, passing down survival skills to her young.

Love Wildlife, Love Life

Inung’s journey is a call to action to protect Indonesia’s flora and fauna, including orangutans, which are currently classified as Critically Endangered by the International Union for Conservation of Nature (IUCN).

Read more: A New Life in the FOrest: Baby Indro

From Inung, we learn that every act of rehabilitation, conservation, and habitat protection can yield real results. When provided with a safe space, orangutans can not only survive but also continue their lineage in the wild. This is living proof that when love for flora and fauna becomes part of our way of life, conservation success becomes possible.

References:

Sherman, J., Ancrenaz, M., & Meijaard, E. (2020). Shifting apes: Conservation and welfare outcomes of Bornean orangutan rescue and release in Kalimantan, Indonesia. Journal for Nature Conservation, 55, 125807.
Preuschoft, S., Yassir, I., Putri, A. I., Aoliya, N., Yuliani, E., Badriyah, S. N., … & Kalcher-Sommersguter, E. (2021). Learning to be an orangutan, implications of life history for orangutan rehabilitation. Animals, 11(3), 767.
Bridgeland-Stephens, L., Thorpe, S. K., & Chappell, J. (2023). Potential resilience treatments for orangutans (Pongo spp.): Lessons from a scoping review of interventions in humans and other animals. Animal Welfare, 32, e77.
Russon, A. E. (2009). Orangutan rehabilitation and reintroduction. Orangutans: Geographic variation in behavioral ecology and conservation, 327-350.
Schuppli, C., Forss, S. I., Meulman, E. J., Zweifel, N., Lee, K. C., Rukmana, E., … & van Schaik, C. P. (2016). Development of foraging skills in two orangutan populations: needing to learn or needing to grow?. Frontiers in zoology, 13(1), 43.

Date Posted: March 8, 2026
Text by: Communication Team, BOS Foundation Headquarters, Bogor, West Java

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