Recent News

Being released to the forest after many years of rehabilitation does not signal an end to challenges for orangutans who have gained their freedom. On the contrary, it is the beginning of a whole new ball... View Article

Our post-release monitoring (PRM) team from Nles Mamse Camp, deep in the Kehje Sewen Forest, recently reported the good news that they had observed two orangutans who have been living in Kehje Sewen for a number... View Article

In mid-May, our rescue team from Nyaru Menteng again joined hands with the Central Kalimantan BKSDA to conduct the rescue of a female baby orangutan in Pangkoh village, Pulang Pisau Regency. The baby was kept for... View Article

This week, BOS Foundation worked in cooperation with the East Kalimantan BKSDA to release five more orangutans to the Kehje Sewen Forest, in East Kalimantan. This brought the number of orangutans released to the Kehje Sewen... View Article

The Kehje Sewen Forest in East Kalimantan is a haven not only for released orangutans, but for many animal species, particularly birds. Our PRM team encounters birds every morning on the journey through the forest to... View Article

Every new orangutan birth in the Bukit Batikap Conservation Forest is greeted with immense excitement from the post-release monitoring (PRM) team from Totat Jalu Camp. This elated sentiment is not only limited to the humans of... View Article

Our PRM team from Nles Mamse Camp recently set off on a cold morning down the Telen River to conduct observations on Totti, one of six orangutans released to the Kehje Sewen Forest at the beginning... View Article

Gina is one of 12 orangutans we released to the Bukit Batikap Conservation Forest in Central Kalimantan, in April 2016. With her great range, Gina had gone undetected this year up until recently. The PRM team... View Article

The sun was scorching down on our team from Nles Mamse Camp in the Kehje Sewen Forest when they spotted an orange figure dangling from a tree close to camp. The post release monitoring (PRM) team quickly turned on the... View Article

Despite peaking in the 1990s, Indonesia’s forests are still being destroyed at a completely unsustainable rate, forcing wild animals – including orangutans – out of their natural habitats. Pushed out of their forest homes, orangutans are... View Article

Once released to the wild, rehabilitated orangutans are monitored closely for a certain period of time by our post-release monitoring (PRM) team, which collects behavioural data during daily observations. Totti, one of the more-recently released orangutans... View Article

As I stand in the jungle observing the orangutan residents of Batikap Conservation Forest, I find myself comparing them to human children. Even a short observation of their behaviour indicates that these great apes, who have... View Article

With the 15th orangutan release in the Kehje Sewen Forest on the horizon, our post-release monitoring (PRM) team in Nles Mamse Camp had many extra tasks to complete. As usual, the team needed to find a... View Article

The BOS Foundation—in cooperation with their implementing partner company, PT. RHOI, and the East Kalimantan Natural Resources Conservation Agency (BKSDA)—has released six orangutans to the Kehje Sewen Forest on National Education Day, which falls annually on... View Article

In February, a female baby orangutan was rescued from the village of Tumbang Sanamang, Katingan Hulu Regency, by a joint team from the Central Kalimantan BKSDA and BOS Foundation’s Nyaru Menteng team. The baby, who was... View Article

  Living in Batikap is nothing short of magical: I wake up to the calls of gibbons every morning, eat my breakfast as I watch red leaf monkeys leap through the trees, and regularly see helmeted... View Article

One of the most challenging tasks of post-release monitoring is ensuring released orangutans do not travel too far to the outskirts of the forest and accidentally enter human settlements. If an orangutan wanders into a village and... View Article

Just as humans do, orangutans can form close bonds and friendships with their peers, even in the wild. Our PRM team from Totat Jalu Camp in the Bukit Batikap Conservation Forest was recently able to document... View Article

Rainy days rarely stop our PRM teams from conducting their routine patrol activities in the Kehje Sewen Forest. The PRM team from Nles Mamse camp recently set off in wet weather conditions to conduct a monthly... View Article

After weeks of nest-to-nest observations on five recently-released orangutans, our PRM team turned its focus back to the more senior inhabitants of the Kehje Sewen Forest. Orangutans like Indonesia, a female we reintroduced in December 2016, whose signal was recently... View Article

The word ‘orangutan’ comes from the Indonesian words orang, meaning ‘person’, and hutan, meaning ‘forest’; thus, ‘orangutan’ translates as ‘person of the forest’. These amazing great apes have more in common with humans than their name implies. Not only in... View Article

Monitoring released orangutans provides many interesting and challenging experiences for members of our PRM team. The team from Nles Mamse Camp in the Kehje Sewen Forest recently set off into the forest to observe mother-infant pair Signe... View Article

Our PRM team recently ventured into the dense Kehje Sewen Forest on a cold morning in search of Tiny, whom we last saw with Ajeng. The gloomy weather failed to discourage us from negotiating the challenging forest... View Article

22nd February 2018 You might remember the two female orangutans we recently rescued, Hati and Riana. Hati was rescued from a villager in Tumbang Sanamang, Katingan Hulu, Central Kalimantan, while Riana was rescued from a resident... View Article

On January 26, a joint team from BOS Foundation and Central Kalimantan BKSDA successfully rescued a 2.5-year-old orangutan weighing 3.3 kilograms, in Lapetan Village, Mantangai Sub-district, Kuala Kapuas Regency, Central Kalimantan. It was reported that the... View Article

Earlier today, Thursday, February 15, 2018, a team from BOSF Samboja Lestari retrieved an individual female orangutan aged around 5 years old from BKSDA East Kalimantan Office. The young orangutan we named Riana was confiscated from a Bontang resident who has been keeping her for 4 years.... View Article

  Our PRM team from Nles Mamse Camp in the Kehje Sewen Forest recently set out before dawn to conduct nest-to-nest monitoring on Tiny, a young male orangutan we released in December. The team picked up... View Article

  Every day our post-release monitoring teams based in the forest work hard to observe and record behavioural data on the orangutans we have reintroduced. Last week, our team at Nles Mamse Camp prepared to head... View Article

December 29, 2017 We are happy to report that the two female baby orangutans we rescued last weekend are gaining strength and recovering well. Alejandra was rescued on December 22, and came to our centre a... View Article

  December 18, 2017 Releasing orangutans to their natural habitat follows a very long and intense rehabilitation process. Rehabilitated orangutans must have mastered many different wild skills before they can be considered for release. They must... View Article

A few days ago, our Post Release Monitoring team from Nles Mamse Camp in the Kehje Sewen Forest departed early in the morning to collect nest-to-nest data on released orangutans. Team members Rere, Siti, and Bagus set off... View Article