what do orangutans eat

Wanariset

Wanariset began as a tropical forest research station in Kaltim near Balikpapan in the Indonesian Province of East Kalimantan and was developed as an orangutan rescue and rehabilitation centre.
[edit] Nyaru Menteng

Nyaru Menteng 2°6′34″S 113°49′14″E / 2.10944°S 113.82056°E / -2.10944; 113.82056 is an orangutan rescue and rehabilitation centre in Kalteng. Lone Drøscher Nielsen sought the advice of Dr Smits about the possibility of creating a new project in Central Kalimantan to deal with the swelling numbers of orphaned orangutans. Dr Smits agreed to help, and with the financial backing of the Gibbon Foundation and BOS Indonesia, Drøscher Nielsen founded Nyaru Menteng, near the city of Palangka Raya, in 1998.[10] She was able to build the facility under an agreement with the Indonesian Ministry of Forestry, and Nyaru Menteng officially opened its doors to the first dozen orangutans in 1999.

The sanctuary was designed to hold up to 100 orphaned orangutans while they go through rehabilitation. In addition to quarantine cages, medical clinic, and nursery, the sanctuary had a large area of forest in which orangutans could learn the skills needed to live in the wild.[11] Nyaru Menteng quickly became the largest primate rescue project in the world, with nearly 700 orphaned and displaced orangutans in its care at the present. [12][13]

Many of these orangutans are only weeks old when they arrive, and all of them are psychologically traumatized.[14] The sanctuary not only saves the mostly orphaned baby orangutans from the local farmers and illegal pet-traders, but has developed a process for their gradual re-introduction to the remaining Borneo rainforest.