Jeffrey, an unreleasable male orangutan too old to undergo rehabilitation, is now sharing Island 0 with Yuyun, a female orangutan who the BOS Foundation team transferred to the island in February. Jeffrey was born in 1998... View Article
In May, the BOS Foundation successfully conducted its 25th orangutan release in East Kalimantan. Immediately after, the Post-Release Monitoring (PRM) team started their nest-to-nest observations on the five orangutans, paying particular attention to Mayer and Elaine.... View Article
The Himba Pambelum Monitoring Camp is officially opened. The inauguration ceremony happened after the release of four orangutans into the Bukit Baka Bukit Raya National Park (TNBBBR) at the Hiran River site. Witnessing the release and... View Article
Yuyun is a 29-year-old female orangutan with Orangutan Respiratory Disease Syndrome (ORDS) who previously occupied an individual enclosure at the Samboja Lestari Rehabilitation Centre. She is one of 23 individuals with chronic respiratory diseases cared for... 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
The Central Kalimantan Natural Resources Conservation Agency (BKSDA), together with the Bukit Baka Bukit Raya National Park Agency (TNBBBR) and the Borneo Orangutan Survival (BOS) Foundation have released ten more orangutans into Bukit Baka Bukit Raya... 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
Meet the candidates for the 41st orangutan release from Nyaru Menteng. The Ministry of Environment and Forestry of the Republic of Indonesia (KLHK), together with the Natural Resources Conservation Centre (BKSDA) of Central Kalimantan and the... View Article
Recently, a five-member Post-Release Monitoring (PRM) team – consisting of Faldo, Balan, Dandi, Yunus and Welem – set off early into the forest for a day of patrolling. As our team members approached a main transect... View Article
In our first release of 2023, the BOS Foundation team recently returned five orangutans to their wild home. It is one of those moments that still give us goosebumps: The second when one of our rehabilitated... 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
Camp Nles Mamse, located in the Kehje Sewen Forest, is surrounded by the beauty of nature and unique flora and fauna. Our Post-Release Monitoring teams regularly encounter exotic animals, like monitor lizards (Varanus salvator), binturongs (Arctictis... View Article
The Ministry of Environment and Forestry of the Republic of Indonesia (KLHK), with the Natural Resources Conservation Center (BKSDA) of East Kalimantan, assisted by the Borneo Orangutan Survival (BOS) Foundation has successfully conducted its 25th orangutan... 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
As we at BOS Australia are proud to present our upcoming Eyes of the Orangutan screening events in Sydney, Melbourne and Auckland, we would like to introduce you to one of the orangutans who have been directly... View Article
Do you remember Ben, the 500th orangutan the BOS Foundation released in November 2022? Our Post Release Monitoring team recently spotted him in his new forest home. One morning, the Post-Release Monitoring (PRM) team in the... View Article
This July you have the one-off chance to view the exclusive cinema screening of the documentary ‘Eyes of the Orangutan’ – a captivating exploration of the dark world of modern wildlife tourism and its impact on... View Article
Camp Lesik has had a new visitor. The Post Release Monitoring (PRM) team recently observed an orangutan off the back of the camp. While we don’t yet know who this individual is, we can be certain... 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
The BOS Foundation recently collaborated with the Indonesian Snake Sioux Foundation to provide snake-handling training for the Post Release Monitoring (PRM) team members. As a result, the team’s perceptions of snakes changed. Snakes will either spark... View Article
Our Post-Release Monitoring (PRM) team in the Hiran watershed recently observed Gonzales, a male orangutan the BOS Foundation team released in November 2022 in the Bukit Baka Bukit Raya National Park. What was he up to?... View Article
The forest is home to many different and unique animal species. Now and then, we introduce you to one of the many fascinating individuals sharing their habitat with the Bornean orangutan. Some tread the ground, others... View Article
Our Post-Release Monitoring (PRM) team recently translocated Hanung, who the BOS Foundation released to the Kehje Sewen Forest in 2016. Find out why. In addition to releasing and monitoring orangutans in the forest, the PRM... View Article
Orangutans are semi-solitary primates who spend the majority of their lives alone. However, in some orangutan populations, the females will gather in groups from time to time, especially during the fruiting season, when forest food is... View Article
Our Post-Release Monitoring (PRM) team recently searched for orangutans at Puncak Leke in the Kehje Sewen Forest when they caught sight of an unidentified animal. They looked closely at the curious creature and noticed it was... View Article
One of the skills the Post-Release Monitoring (PRM) team members learn when working in the Kehje Sewen Forest is the ability to fire a tranquiliser gun and become jungle sharpshooters. All of them must possess this... View Article
On 6 December 2022, the Balikpapan BKSDA received a report from an employee of PT. Balikpapan Wana Lestari (BWL) that an orangutan had visited the workers’ camp and interacted with staff over four consecutive days. According... View Article
One morning, a Post-Release Monitoring team made up of members Pel, Emen and Jeje, along with our veterinarian, Dr Made, went on patrol along Transect #9. Suddenly, they spotted a male orangutan. Who was it? Well... 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
We at BOS have played a part in changing the lives of thousands of orangutans in Indonesia. Our job is not one we have taken on eagerly, but together with the government of Indonesia, we must... 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
The BOS Foundation is on a mission to release as many ready orangutans as possible from its two rehabilitation centres into the wild, where they can breed naturally in the forest. However, while in a rehabilitation... View Article
On Saturday, November 12, a small caravan carrying some very special cargo departed from the BOS Foundation’s Nyaru Menteng Orangutan Rehabilitation Centre in Central Kalimantan. The teams started the day as the sun rose with a... View Article
Adele is a female sun bear who was first discovered by employees of PT. Inhutani in Long Nah, East Kutai Regency. At the time of her rescue, she was only about a month old, with her... View Article
The BOS Foundation has successfully released 500 orangutans in the decade since the releases restarted in February 2012. Our latest release journey began in the evening when swabs were used to collect samples from team members... View Article
