This is the only place where tigers
It is home to lesser-known marvels, like the proboscis monkey, sun bear, clouded leopard and flying fox bat.
But these magnificent creatures are disappearing as their forest homes are rapidly being cut down to make way for oil palm plantations
or destroyed by commercial or illegal logging
also poses a grave threat to the island's endangered species - tigers are hunted for their skins, rhinos are killed for their horns, and orangutans are taken from the wild for the entertainment and tourism trade.