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
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
The Post-Release Monitoring team in the Bukit Batikap Protection Forest recently observed Inung and her offspring, Indie, who frequently visit their camp. However, this time, Inung had a special surprise for them. Inung and Indie were... View Article
Our Post-Release Monitoring (PRM) team in the southern section of the Kehje Sewen Forest recently had another encounter with Signe and her baby. The infant now has a name: Rafalang, which is a combination of the... View Article
Our Post-Release Monitoring (PRM) team recently spotted a familiar face in the Bukit Batikap Protection Forest. After being untracked for several years since her release in 2015, the female orangutan Mentos was finally identified again. Even... View Article
Do you remember the story of Hamzah crashing Lesan and Sayang’s party? It’s been two years since orangutan Sayang and her baby, along with Lesan and her offspring, last celebrated at Camp Lesik. Recently, they returned... View Article
We have a beautiful story about a mother and her infant from one of our release locations in Bukit Baka Bukit Raya National Park. Our Post-Release Monitoring team in the Hiran watershed successfully observed Hilda, a... View Article
When many orangutans come down with flu at the same time, our surrogate mothers and veterinarians work together to make a traditional tonic – onion juice mixed with honey. According to our vet, onions can help... View Article
We have not one but two beautiful opportunities for you to support our cause this festive season and spread some cheer for our amazing red cousins. While we are celebrating each successful release, we must not... View Article
If you’ve ever watched the documentary series ‘Orangutan Island’, you know her – the coolest female star ever to hit the TV screen: ‘Sheriff Daisy’. It’s been a while since we’ve seen her, but our Post-Release... View Article
In June, we released ten more orangutans into the Bornean rainforest. One of them was eight-year-old Kejora. Her life is a story of both unbelievable cruelty and hope. Despite her tremendous challenges, Kejora’s release proves that... View Article
Baimah arrived at the Samboja Lestari Orangutan Rehabilitation Centre in September 2022. At 15 kilograms, she was severely overweight for a two-year-old orangutan. Find out how she has improved. Before her rescue, a local villager had... View Article
After Sayang was seen some months ago with an enlarged belly and other signs of pregnancy, our Post-Release Monitoring (PRM) team from Camp Lesik could not locate her again – until recently. Meanwhile, Lesan and her... View Article
About five months ago, Lesan, one of the first orangutans released in the Kehje Sewen forest in 2012, gave birth to her second wild-born baby. How are they both doing? The Post Release Monitoring team at... View Article
In 2022, we took in several young, orphaned orangutans at our rehabilitation centres in Nyaru Menteng and Samboja Lestari. Little Rumba was one of them. Clingy Rumba was less than 12 months old when she arrived... View Article
In recent months, Sayang has not appeared around Camp Lesik in the Kehje Sewen Forest. Unlike before, when our team often saw the families of Sayang and Lesan spending time together around the camp, they only... View Article
Samboja Lestari’s Forest School has one less student for the time being, as little Galaksi has been removed from the group’s activities due to a fracture in his leg. Find out what happened to him. Galaksi... View Article
On 3 November 2022, a resident of Tumbang Kajamei village in Central Kalimantan travelled for four hours by motorcycle to hand over baby orangutan, Iqo to the BOS Foundation team. When the little female arrived at... View Article
The Kehje Sewen Forest has welcomed a new resident! Following confirmation from our veterinarian in October last year that Lesan was pregnant, we are thrilled to announce that she has since given birth! Lesan was last... View Article
Do you remember Inung and Indie? The Post-Release Monitoring team recently spotted the unexpected visitors of a mother-infant pair near Camp Totat Jalu in the Bukit Batikap Protection Forest, Central Kalimantan. Inung and Indie were observed... View Article
This year, our Nyaru Menteng Orangutan Rehabilitation Centre has taken in several traumatised, orphaned orangutans, including young female Temon. Together with the Central Kalimantan BKSDA, the BOS team helped rescue Temon on June 8, after receiving... View Article
The BOS Foundation’s Samboja Lestari Orangutan Rehabilitation Centre recently took in another baby orangutan from the BKSDA Regional Conservation Division (SKW) II of Tenggarong. The BOS team – consisting of a veterinarian, surrogate mother, and communications... View Article
6-year-old Ayu was born in the wild to the rehabilitated orangutans Lesan and Hamzah (presumed), who were both released in the Kehje Sewen Forest a decade ago. Young orangutans at Ayu’s age will slowly begin to... View Article
All living things, including orangutans, have the drive to meet their biological needs: water, oxygen, food, shelter – and the opportunity to reproduce. When it comes to wild orangutans, who live a semi-solitary life, the reproduction... View Article
An overcast sky provided the perfect atmosphere for a relaxing afternoon at Camp Nles Mamse. While resting in a swaying hammock, I read a book and enjoyed the cool air as it gently breezed through the... View Article
Our Post Release Monitoring team spotted Long again! The female orangutan left a deep impression on the BOS staff, as her relationship with Arief is one of the most extraordinary we have ever observed. It all... View Article
Recently, the Post-Release Monitoring (PRM) team had the rare chance to observe an orangutan mother and her two children together. Find out who it was and why this family is so special. At the time, Jimi... View Article
We have an exciting update about mother orangutan Sayang and her daughter Padma. Our Post-Release Monitoring (PRM) team from Camp Lesik observed them in the Kehje Sewen Forest in East Kalimantan. When our PRM team from... View Article
Davi is nearly seven years old and a student at Samboja Lestari’s Forest School, where she continues to learn the skills required to survive in the wild. Davi practices daily how to find food, build nests... View Article
We have some great news from the Kehje Sewen Forest in East Kalimantan regarding the birth of a new baby orangutan! In August 2021, our Post-Release Monitoring (PRM) team from Nles Mamse camp in the Kehje... View Article
Every year, the BOS Foundation’s two Orangutan Rehabilitation Centres – Nyaru Menteng and Samboja Lestari – take in rescued, orphaned orangutans. They must undergo a lengthy rehabilitation process before we can release them into a secure,... View Article
Correctly identifying orangutans during observations can be tricky. This is especially true if our Post-Release Monitoring (PRM) team observes orangutans they haven’t spotted for a long time or when the team on duty is not familiar... View Article
