Borneo: An island in the Malay Archipelago, east of Sumatra, north of Java, and west of Celebes. It is the third largest island in the world. Its name is a Portuguese alteration of BRUNEI, located on it. (From Webster's New Geographical Dictionary, 1988, p163; Room, Brewer's Dictionary of Names, 1992, p73)Dipterocarpaceae: A plant family of the order Theales.Plasmodium knowlesi: A protozoan parasite from Southeast Asia that causes monkey malaria. It is naturally acquired by man in Malaysia and can also be transmitted experimentally to humans.Malaysia: A parliamentary democracy with a constitutional monarch in southeast Asia, consisting of 11 states (West Malaysia) on the Malay Peninsula and two states (East Malaysia) on the island of BORNEO. It is also called the Federation of Malaysia. Its capital is Kuala Lumpur. Before 1963 it was the Union of Malaya. It reorganized in 1948 as the Federation of Malaya, becoming independent from British Malaya in 1957 and becoming Malaysia in 1963 as a federation of Malaya, Sabah, Sarawak, and Singapore (which seceded in 1965). The form Malay- probably derives from the Tamil malay, mountain, with reference to its geography. (From Webster's New Geographical Dictionary, 1988, p715 & Room, Brewer's Dictionary of Names, 1992, p329)Pongo pygmaeus: A species of orangutan, family HOMINIDAE, found in the forests on the island of Borneo.Arecaceae: The palm family of order Arecales, subclass Arecidae, class Liliopsida.Trees: Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main stem and numerous branches.Pentanes: Five-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.Panthera: Genus in the family FELIDAE comprised of big felines including LIONS; TIGERS; jaguars; and the leopard.Pentastomida: A subclass of CRUSTACEA comprising the tongue worms which are obligatory parasites of reptiles, birds, and mammals including humans.Brunei: An independent sultanate on the northeast coast of Borneo. Its chief products are oil and natural gas. Its name is Hindi, coming from the Sanskrit bhumi, land or region. It gave its name Brunei to Borneo. (From Webster's New Geographical Dictionary, 1988, p183 & Room, Brewer's Dictionary of Names, 1992, p82)Alocasia: A plant genus of the family ARACEAE. Members contain beta-glucosidases and trypsin inhibitors.