Indonesia pet orangutans released back into the wild Two young Sumatran Orangutans spent nearly two years learning to fend for themselves at a rehabilitation centre and 'forest school' before being returned to the wild at Pinus Jantho Forest Reserve in Indonesia. The rescue is a rare spot of bright news for the critically endangered species, which has seen its habitat shrink drastically over the past few decades largely due to the destruction of forests for logging, paper, palm oil and mining.