Complex sentence: The proboscis monkey ("Nasalis larvatus") or long-nosed monkey, known as the bekantan in Malay, is a reddish-brown arboreal Old World monkey that is endemic to the south-east Asian island of Borneo.
Split into simpler sentences: The Proboscis Monkey ("Nasalis larvatus"), known as the bekantan in Malay, or simply the Long-nosed Monkey. It is a reddish-brown arboreal Old World monkey that is endemic to the south-east Asian island of Borneo.