The Orphans of Deforestation

The baby orangutan arrives at the Borneo Orangutan Survival Foundation's rehabilitation center in East Kalimantan wrapped in a dirty towel, its arms wrapped around itself, its eyes wide and terrified. It is fourteen months old, and it weighs less than a healthy six-month-old should. It was found by palm oil plantation workers in a bulldozed section of forest, clinging to the body of its dead mother.

Her name, the staff tells me, is Melati. She is the 14th orangutan rescued this month.

The BOS Foundation's rehabilitation center at Samboja Lestoi, an hour's drive from the provincial capital of Balikpapan, currently houses 620 orangutans, making it one of the largest primate rehabilitation facilities in the world. Every year, it receives new arrivals—infants separated from their mothers during illegal logging operations, juveniles found wandering alone after their forest was cleared, adults injured in confrontations with humans or machinery. The center's annual budget is approximately $3 million, almost entirely dependent on international donations, and it is never enough.

Orangutans have the longest childhood of any animal except humans. A baby orangutan depends on its mother for survival for the first seven to ten years of its life, learning everything it needs to know to survive in the forest—how to identify and process food, how to build a sleeping nest, how to navigate the canopy—through direct observation and practice. An orangutan that loses its mother before this education is complete cannot survive in the wild. It lacks the skills to find food, avoid predators, or navigate the forest. It becomes, in effect, an orphan in a world that has no place for it.

The palm oil industry has created an almost endless supply of these orphans. Indonesia is the world's largest producer of palm oil, a versatile vegetable oil used in everything from chocolate to shampoo to biofuel. Vast tracts of Borneo and Sumatra's ancient forests have been cleared to make way for oil palm plantations, and in the clearing, everything dies—trees, insects, birds, and the great red apes that depend on the forest. Some orangutans are killed outright. Others escape into increasingly fragmented forest fragments where they cannot find mates or enough food. And some are captured and sold in the illegal pet trade, ending up in villages where they are kept in cages, fed table scraps, and slowly forgotten.

The rehabilitation process at BOS is painstaking and slow. Infants are placed with surrogate mothers—other orangutans who have lost their own offspring and may accept a new infant. The pairing process can take months, and it does not always succeed. Weaned infants enter a 'forest school,' where they learn to climb, to find food, to build nests. The process takes years, and even then, not every orangutan can be released. Some are too habituated to humans, too imprinted on people to survive without them. These individuals spend their lives in semi-wild enclosures, cared for but never free.

Dr. Surya Rahmadani, the center's head veterinarian, shows me the infant ward, where a dozen baby orangutans—each in its own small cage to prevent disease transmission—are being fed milk from bottles by staff members working in shifts around the clock. "Every one of these animals represents a forest that is gone," he says. "You cannot rehabilitate an orangutan without rehabilitating its habitat. And we cannot keep up with the pace of destruction."

In 2024, Indonesia's Ministry of Environment announced that it would not renew palm oil expansion permits for primary forest areas. Conservationists welcomed the announcement but noted that enforcement in remote areas of Borneo and Sumatra remains sporadic and often nonexistent.

Melati, the newest arrival, is introduced to a surrogate mother named Suri. For an hour, Suri ignores her. Then, slowly, Suri reaches out one long arm and pulls Melati close. The staff members who witness it are quiet for a moment. "This is why we do it," one of them says finally. "This."