The Bornean orangutan is a large primate native to the island of Borneo in Southeast Asia. It is known for its long arms, reddish-brown fur, and distinctive facial features. Bornean orangutans are primarily arboreal, spending most of their lives in trees, where they build nests for sleeping and foraging for fruits, leaves, and insects. These orangutans are critically endangered due to habitat loss from deforestation, illegal logging, and palm oil plantations. Conservation efforts are underway to protect their natural habitats and ensure the survival of this unique species, which plays a vital role in maintaining the health of tropical forests.