Orangutan Information Centre

Yayasan Orangutan Sumatera Lestari – Orangutan Information Centre (YOSL-OIC) is a grassroots NGO based in Medan of North Sumatra. We work in collaboration with local communities living alongside orangutan populated areas in both the Leuser Ecosystem and the Batang Toru Ecosystem. The Leuser Ecosystem is the last natural habitat remaining for the Sumatran orangutan and is one of the most important tropical forests remaining in Asia. The Leuser ecosystem is the only place on Earth where orangutans, tigers, rhinos and elephants coexist in the wild, making it a high priority landscape for conservation efforts as well as earning a globally important status. The Batang Toru Ecosystem is a mountainous area of rainforest in the province of North Sumatra. The Tapanuli orangutan (Pongo tapanuliensis) that was discovered in 2017 as a new species of orangutan, is endemic to the Batang Toru Ecosystem, and with fewer than 800 individuals, is Critically Endangered.