A release is the final stage of an often lengthy and challenging rehabilitation process. The culmination of this process is the return of orangutans to their forest homes, where they can naturally contribute to the ecosystem... View Article
Our Post Release Monitoring (PRM) team awoke to a sunny morning as they prepared to undertake a routine patrol in the forest. As usual, they departed from Camp Nles Mamse for the day’s expedition. Yunus and... View Article
Do you remember the orangutans we released into the Kehje Sewen Forest in May? Amongst them are Andreas, Riana, and Leann. Find out how they are doing in their new home in the forest. Andreas, Riana,... View Article
Who remembers Petto? We have missed him since our Post-Release Monitoring (PRM) team from the Himba Pambelum Monitoring Camp in Bukit Baka Bukit Raya National Park Area, Central Kalimantan, last encountered him in August 2022. Now,... 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 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
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
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
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
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
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
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
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
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
Working far away from urban areas has its unique challenges, as our Post-Release Monitoring (PRM) team from Camp Lesik in the Kehje Sewen Forest, East Kalimantan, can attest. Something the technicians regularly experience is running out... View Article
Recently, our monitoring team conducted nest-to-nest observations on Desi, a female orangutan residing on Juq Kehje Sewen, one of BOS Foundation’s pre-release islands in East Kalimantan. The team, consisting of Aluna, Ubay, Rustam, and Erik, had been... 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
One of the tasks of the Post-Release Monitoring (PRM) team involves collecting data on the phenology of natural-occurring plant species in orangutan habitats. While conducting phenological surveys, the BOS rangers occasionally meet orangutans as well. Let’s... View Article
The Ficus racemosa or, as it is commonly known, the cluster fig tree can be found growing throughout the Kehje Sewen Forest in East Kalimantan, where we release rehabilitated orangutans. It grows in lowland, tropical forests, mostly along... View Article
Earlier this year, our Post-Release Monitoring (PRM) team from Camp Lesik in the Kehje Sewen Forest, East Kalimantan, was observing orangutans when male Hamzah suddenly appeared out of nowhere Hamzah crashes the party. Find out what... 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
