JELAPAT THE STRATEGIST
Not all orangutans face life in the same way. Some individuals are more dominant and bold in taking up space, while others take a different approach to meet their needs without getting into conflict. Jelapat is... View Article
News
News
BEYOND RELEASE –THE CARE CONTINUES
A release into the wild is often seen as the final chapter in an orangutan’s rehabilitation journey; however, for our Post Release Monitoring (PRM) teams, it is not. Discover what it takes to track a released... View Article
THE 47TH RELEASE CANDIDATES FROM NYARU MENTENG
The Ministry of Forestry of the Republic of Indonesia, the Central Kalimantan Natural Resources Conservation Agency (BKSDA), the Bukit Baka Bukit Raya National Park (BTNBBBR), and the Borneo Orangutan Survival (BOS) Foundation will soon conduct the... View Article
3 DAYS WITH MANGGO AND MELKI
The Post-Release Monitoring (PRM) team once again recorded interesting observations of orangutans living freely in the Bukit Batikap Protected Forest of Central Kalimantan. This time, the monitoring focused on a mother orangutan named Manggo and her... View Article
PROTECTING PEATLANDS: A WIN-WIN FOR ALL
In partnership with the Sebangau National Park, BOS is launching its new Sebangau Program. The goal is to safeguard vital peat-swamp forests, which are home to more than 6,000 wild orangutans. Peatland ecosystems are among the... View Article
A SUN BEAR’S GOLDEN YEARS
At the Sun Bear Sanctuary in Samboja Lestari, every bear has its own story. To date, the Borneo Orangutan Survival (BOS) Foundation, through Samboja Lestari, cares for around 75 sun bears, each with a unique life... View Article
EARTH DAY 2026: OUR POWER, OUR PLANET
Every April 22, millions of people around the world take a moment to recognise a simple yet profound truth: the Earth is our shared home. Since its inception in 1970, Earth Day has grown into a... View Article
MOZA’S REMARKABLE JOURNEY
On September 13, 2015, a two-year-old female orangutan began a long journey back home to Indonesia. The young orangutan was later named Moza. After being rescued in Kuwait, she was repatriated to Indonesia through a collaboration... View Article
PONY RECENTLY
The BOS Foundation is aware that discussions about Pony occasionally reappear in the media and on online platforms. Our communication approach focuses on verified, current information regarding her welfare and care. Pony currently lives at the... View Article
A STANDOUT TEENAGER
Just like humans, orangutans go through different life stages: from infancy and childhood to adolescence and adulthood. Each stage is characterised by unique traits and behavioural changes. Adolescence is one of the most captivating phases, as... View Article
VITAL INTERACTIONS
Do you remember the story of Sally and her little furry friend? That simple story actually offers a broader insight into our understanding of orangutan social behaviour. Although orangutans are often described as semi-solitary primates, they... View Article
CARING FOR NATURAL HERITAGE AND HEALTH
World Wildlife Day 2026 carries the theme ‘Medicinal and Aromatic Plants: Conserving Health, Heritage, and Livelihoods’. It highlights the vital role of these plants in supporting human health, preserving traditional knowledge, and sustaining the livelihoods of... View Article
PLANTING A NEW HOME FOR ORANGUTANS
Restoration initiatives are crucial for preparing the Kehje Sewen Forest as a future release area for rehabilitated orangutans from our Samboja Lestari Rehabilitation Centre in East Kalimantan. By maintaining the habitat and ensuring an ample supply... View Article
LEARNING THE ROPES
Rescued in mid-2025, Momo is currently continuing her rehabilitation journey at the Nursery Group, where young orangutans learn essential life skills in a safe and supportive environment. Alongside her peers, she is gradually developing her own... View Article
RUBBER TREES AS A LOCAL COMMUNITY HERITAGE
After a successful collaboration on the sustainable use of sugar palm trees, the Community Development Division at Samboja Lestari has launched a similar initiative to utilise rubber trees. This program is part of the BOS Foundation’s... View Article
A NEW LIFE FOR VERA AND JUJUN
The BOS Foundation recently relocated two orangutans from the Individual Enclosure Complex to Sanctuary Island #5 at the Samboja Lestari Orangutan Rehabilitation Centre–a significant step towards a more natural environment. The move is part of the... View Article
A UNIQUE FRIENDSHIP
Sally, a female orangutan who previously lived in the Socialisation Complex at Samboja Lestari, has taken a huge step on her rehabilitation journey: the BOS team relocated her to the Juq Kehje Swen Pre-Release Island in... View Article
AGIS BRINGS EXCITING NEWS
Our efforts to monitor orangutans in the wild have once again delivered heartening news. BOS Foundation’s Post-Release Monitoring (PRM) Team recently encountered a female orangutan strongly believed to be Agis. The rehabilitated female, released into Bukit... View Article
GROWING STRONGER TOGETHER
Do you remember Esa and Indri, the two rescued baby orangutans who arrived together at Samboja Lestari in mid-2025? Both have now completed their quarantine period and joined the Nursery Group stage of Forest School. How... View Article
A FRAGILE START TOWARDS A STRONGER TOMORROW
The Nyaru Menteng Orangutan Rehabilitation Centre has recently welcomed a new arrival—a tiny female orangutan named Pororo. Arrival at Nyaru Menteng A local resident who voluntarily handed over Pororo reported that she was found on a... View Article
THE 46TH ORANGUTAN RELEASE FROM NYARU MENTENG
The Ministry of Forestry of the Republic of Indonesia, the Central Kalimantan Natural Resources Conservation Agency, the Bukit Baka Bukit Raya National Park, and the Borneo Orangutan Survival (BOS) Foundation will soon conduct the 46th orangutan... View Article
KOPRAL’S RECOVERY
Do you remember Kopral, the orangutan with no arms? He is our superhero when it comes to determination, resilience and a positive attitude. Last year, he seriously injured his right foot, which is extremely tragic for... View Article
HOW ORANGUTANS UNDERGO THEIR ANNUAL HEALTH CHECK
At the BOS Foundation’s rehabilitation centres, the veterinarians perform routine annual health checks to ensure the well-being of the orangutans in our care. Recently, our medical, animal welfare and technician teams at Samboja Lestari conducted a... View Article
MAMA JOSIE’S JOURNEY
Josie is one of the female orangutans currently honing her learned skills on Kaja Pre-Release Island. She is typically shy and solitary, rarely interacting or socialising with other orangutans on the island. Discover how she has... View Article
SELFIE IS GROWING BOLD
Since 29 May 2025, Selfie, a young female orangutan, has officially joined the small group at the Forest School of the Nyaru Menteng Rehabilitation Centre. Initially, she was accompanied by her little friend Rumba, who brought... View Article
A CALM ADAPTATION TO THE WILD
Do you remember Sie-Sie, the orangutan who was released into the wild last April? Unlike most orangutans who immediately climb trees or quietly distance themselves after release, Sie-Sie reacted with aggression. He showed signs of stress... View Article
ARE ORANGUTANS EMPATHETIC?
When surrogate mother Eva recently got injured by a branch, she received unexpected emotional support. It was a usual day at the Nyaru Menteng Forest School, where young orangutans learn from one another while their human... View Article
LOVE IS IN THE AIR
Mating behaviour is one of the most important forms of social interaction in the life of orangutans. This interaction occurs between male and female individuals and plays a vital role in ensuring the survival of a... View Article
LEARNING TO LIVE WILD AND FREE
In the wild, baby orangutans, like Signe’s son Rafalang, remain closely attached to their mothers until they are around 7 to 8 years old. During this long period, a female orangutan will not give birth again,... View Article
SUCI’S SWEET DISCOVERY
In the vast wilderness of Bukit Baka Bukit Raya National Park, Central Kalimantan, the story of Suci, a young female orangutan, continues to unfold with new wonders. First released in 2021, Suci occasionally appeared during observations... View Article
CAMERA TRAPS UNVEILING ABUNDANCE OF BIODIVERSITY
Wildlife monitoring technology has evolved significantly in recent years, with camera traps being one example. Since 2024, the PT. Restorasi Habitat Orangutan Indonesia (PT. RHOI) team has installed six Reconyx Hyperfire infrared cameras in the Kehje... View Article
MELISA IS BACK—WITH A BABY!
In the heart of the Hiran Watershed area within the Bukit Baka Bukit Raya National Park in Central Kalimantan, an unexpected encounter between a mother orangutan and her baby filled the BOS Post-Release Monitoring team with... View Article
GUARDIANS OF THE FOREST #2: COLLABORATION TO PROTECT KEHJE SEWEN
As part of ongoing efforts to protect the Kehje Sewen Forest in East Kalimantan, the Community Development Team and the Ecosystem Restoration – Forest Protection, Security, and Fire Prevention (RE-PPHK) Team from BOS Foundation’s company PT... View Article
GUARDIANS OF THE FOREST #1: PROTECTING THE KEHJE SEWEN ECOSYSTEM
Nestled in East Kalimantan, the Kehje Sewen Forest is a tropical treasure trove—rich in both biotic and abiotic resources that make it a globally significant ecosystem. Home to a wide variety of plant and animal species,... View Article
JUMBO’S NEW LIFE
Jumbo was the fifth orangutan released by the BOS team into the Bukit Baka Bukit Raya National Park in Central Kalimantan. He followed Hanau, Pirang, Rongda, and Radmala, who were released prior. These five orangutans were... View Article
ANOTHER BABY SUN BEAR ARRIVES AT SAMBOJA LESTARI
Recently, the Samboja Lestari Rehabilitation Centre welcomed a new female sun bear cub. The BOS team, consisting of a veterinarian and the animal welfare and communications team, travelled to the Natural Resources Conservation Agency’s Tenggarong office... View Article