[4][5][6] Another Indian source, an inscription on the south wall of the Brihadeeswarar Temple, recorded the word Malaiur, referring to a kingdom in the Malay Peninsula that had "a strong mountain for its rampart".[7][8] Ptolemy's Geographia named a geographical region of the Golden Chersonese as Maleu-kolon, a term thought to derive from Sanskrit malayakolam or malaikurram.[9] While the Chinese chronicle of the Yuan dynasty mentioned the word Ma-li-yu-er, referring to a nation of the Malay Peninsula that was threatened by the southward expansion of the Sukhothai Kingdom under King Ram Khamhaeng.[10][11] During the same era, Marco Polo made a reference to Malauir in his travelogue, as a kingdom located in the Malay Peninsula, possibly similar to the one mentioned in the Yuan chronicle.Several large endangered mammals inhabit the peninsula – Asian elephant (Elephas maximus), gaur (Bos gaurus), tiger (Panthera tigris), sun bear (Helarctos malayanus), Malayan tapir (Tapirus indicus), clouded leopard (Neofelis nebulosa), and siamang (Symphalangus syndactylus).