The Philippine porcupine, Indonesian porcupine, or Palawan porcupine, Hystrix pumila, is a species of rodent in the Hystricidae family (Old World porcupines) endemic to the island of Palawan in the Philippines. It is known locally as durian or landak.
Apparently, its population is stable, but it is reported to be persecuted by farmers as pests in coconut plantations. Locally common to uncommon, the species is found in primary and secondary forest in the mountains and in the lowlands. This species also inhabits caves, but is commonly found under tree buttresses or in rock crevices. It endemic and restricted to the Palawan Faunal Region. It has been recorded in the islands of Busuanga, Calauit, and Coron, and on the mainland at the Puerto Princesa Subterranean River National Park, and the forested areas of El Nido.
This mammal appears to have no natural enemies. Its outer covering of spines serves as its protection and defense system. It measures about 42–93 cm (1.38–3.05 ft) long, not counting a tail of about 2.5–19 cm (0.98–7.48 in) and weighs 3.8–5.4 kg (8.4–11.9 lb).
- Woods, C. A.; Kilpatrick, C. W. (2005), "Hystricognathi", in Wilson, D. E.; Reeder, D. M., Mammal Species of the World: a Taxonomic and Geographic Reference, 3rd ed., Baltimore: Johns Hopkins University Press, pp. 1538–1600, ISBN 0-8018-8221-4
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