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An orangutan is a rare type of ape that are found only in the rain forests of the Southeast Asian islands of Borneo and Sumatra. A century ago there used to be about 230,000 of them but now there are only roughly 104,700 left. Although their diet is made up of about 60% fruit, like durian, they also eat leaves, tree bark, roots, insects and sometimes even small mammals like slow loris. The Bornean rainforest is renowned for having unpredictable seasons which can cause fruit availability to be scarce for long periods at a time. In general orangutans are really peaceful creatures and are amazing.