Jumbo is about to experience his well-deserved freedom in the Bukit Baka Bukit Raya National Park as part of the upcoming release from the Nyaru Menteng Rehabilitation Centre. Before that happens, let’s take a moment to... View Article
In late 2024, Yuyun’s health took a significant turn for the worse. On Island #0, where she had lived with her fellow orangutan Jeffrey for a long time, Yuyun appeared weak and had lost her appetite.... View Article
Reuniting with rehabilitated orangutans always brings unique stories for our Post-Release Monitoring (PRM) teams at release sites. Here is one from the Kehje Sewen Forest. It was a bright morning when the PRM team members went... View Article
Galaksi, once a tiny and fragile orangutan at Samboja Lestari’s Rehabilitation Centre, has blossomed into a lively and spirited youngster. Since he arrived in 2021, Galaksi has been under the careful watch of our dedicated surrogate... View Article
In the lush canopy of Badak Kecil Island, amidst the rustling leaves and echoing calls of wildlife, Kheal, a remarkable orangutan, showcases her ingenuity in the face of challenges. As the morning sun cast its golden... View Article
Recently, the weather in Central Kalimantan, especially around Nyaru Menteng, has been unpredictable: Sometimes, it is very hot and dry, while other times, there is heavy rainfall and cool temperatures. As a result, several of Nyaru... View Article
Our Post-Release Monitoring (PRM) team at Camp Himba Pambelum in the Bukit Baka Bukit Raya National Park finally spotted Suci again. Find out how the young female is doing. The PRM team was thrilled to encounter... View Article
At now seven years old, Mema is in the sub-adult development phase. This stage of her life comes with quite a few changes as she grows and matures. Find out how they manifest themselves in Mema’s... View Article
In the heart of Central Kalimantan’s Salat Island cluster, we catch up with everybody’s darling, Big Boy Beni. Since 2019, the ‘Orangutan Jungle School’ superstar has lived on Badak Besar Pre-Release Island, where he endures a... View Article
The Borneo Orangutan Survival (BOS) Foundation, together with the Ministry of Environment and Forestry of the Republic of Indonesia (KLHK) and the Central Kalimantan Natural Resources Conservation Centre (BKSDA), will soon conduct the 43rd orangutan release... View Article
In 2013, a female orangutan named Cici missed her chance at true freedom when the BOS Foundation team had to postpone her release. Today, Cici is 24 years old and a resident of Kaja Island, where... 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
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
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
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
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
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
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 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
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
Orangutans have distinctive personalities and unique physical characteristics. These make it easy for those who work with them to tell individuals apart. A few indicators our technicians use to identify orangutans are body size, facial features,... 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
We have an update on Dilla! She is one of our unreleasable orangutans, and she became famous in the documentary series ‘Orangutan Jungle School’. While all orangutans in BOS Foundation’s care have a tragic backstory, Dilla... View Article
Orangutans must learn and develop their repertoire of survival skills before being released into the wild. Competing with other orangutans over resources is an essential skill they need to master to become independent. However, some individuals... View Article
Do you miss cheeky Valentino? He is eagerly tackling his final steps to freedom on a pre-release island. But he still has a lot to learn. Find out how his island life has been going. Valentino,... View Article
Today is a very special day for our beloved Shelton. Exactly ten years ago, on 24 February 2012, our Samboja Lestari team rescued him. While looking for food, the six to seven-year-old male was beaten, shot... View Article
Do you enjoy watching our rescued orangutans playing and learning in Forest School and eventually returning to their true home in the Bornean rainforest? Unfortunately, the orangutan rehabilitation process does not always produce the desired results,... View Article
This week we would like to tell you the story of resilient Nobri. It is one of our many stories of hope. Because no matter how impossible the obstacles may appear, if we provide an opportunity,... View Article
Reno (No) A little about Reno (No) Reno was brought to Nyaru Menteng together with Cantik on the 11th of April. He had been confiscated some 100 km from Palangka Raya and had only been with the owners for one day. He was approx 2 years old and still...
Keke (ke) A little about Keke (ke) Keke arrived together with Koko on the 01 july 2002. She had been Kokos friend and comfort at the lab where they were held. Keke is 100 blind. Whether blind from birth or perhaps from being damaged during her mothers...
Cantik (tik) A little about Cantik (tik)Cantik means beautiful in Indonesian, and she deserves the name. She was brought to Nyaru Menteng on the 11th of April by the local conservation office. She was approx 1.5-2 years old and had extremely long...
Koko (ko) A little about Koko (ko) Koko arrived on the 1st of July 2002, from Bogor on Jawa. She was approx 1.5-2 years old, with big watery eyes, crocked ears, short dull looking hair and a great smile. She weighed 7 kg. She had been send from West...
Olympia (pia) A little about Olympia (pia) Late afternoon on the 27th of March, a police car rolled up in front of the clinic... and five police officers climbed out. Our guards almost looked sweaty at the sight They brought along a small prisoner. It...
A little about Trold On the evening of 27th of February some people from the village nearest Kaja Island reported they had brought a small orangutan down from up river where it was held captive under appalling conditions. We picked her up the next...
