The Sunda Pangolin: The World’s Most Trafficked Mammal

In the tropical forests of Southeast Asia, a solitary, scale-covered mammal emerges at dusk to forage for ants and termites along the forest floor and in the canopy above. The Sunda pangolin (Manis javanica), also known as the Malayan pangolin, is a medium-sized pangolin found from Myanmar to Borneo. It would be unremarkable among the world’s nocturnal insectivores were it not for a devastating distinction: Manis javanica is the single most heavily trafficked mammal species on Earth. Classified as Critically Endangered by the IUCN Red List, the Sunda pangolin faces relentless exploitation driven by demand for its scales in traditional medicine and its meat as a luxury food across East Asia.

Understanding the Sunda pangolin’s biology, range, and the threats it faces is essential for anyone working in pangolin conservation — including those in southern Africa, where trafficking networks increasingly connect African and Asian pangolin populations in a single global supply chain.

Taxonomy and Classification

The Sunda pangolin belongs to the genus Manis, which contains all four Asian pangolin species: the Chinese pangolin (Manis pentadactyla), the Indian pangolin (Manis crassicaudata), the Philippine pangolin (Manis culionensis), and the Sunda pangolin. The species name javanica references the island of Java, where the type specimen was described. Within its broad range, some researchers have proposed subspecific divisions, but these remain under taxonomic review. Molecular phylogenetic studies place the Sunda pangolin as the sister species to the Philippine pangolin, with the two having diverged following the geological separation of Palawan from the Sunda Shelf.

Physical Description

The Sunda pangolin is a medium-sized pangolin, with adults weighing between 4 and 10 kilograms and measuring 40 to 65 centimetres in head-body length. The tail is roughly equal in length to the body and is strongly prehensile, used for gripping branches during arboreal foraging. The dorsal body is covered in overlapping keratinous scales that are typically yellowish-brown to olive, numbering between 900 and 1,000 on an adult individual — more numerous and smaller than those of African ground pangolins.

The underside, face, and inner surfaces of the limbs are covered in coarse hair rather than scales. The forelimbs bear large, curved claws adapted for excavating ant and termite nests, while the hind limbs have shorter claws suited for climbing. Like all pangolins, the Sunda pangolin is edentate — entirely lacking teeth — and relies on its muscular stomach, which contains ingested grit and small stones, to grind food internally.

Habitat and Range

The Sunda pangolin has the broadest distribution of any Asian pangolin species. Its range spans mainland Southeast Asia — including Myanmar, Thailand, Laos, Cambodia, and Vietnam — and extends across the islands of the Sunda Shelf: Peninsular Malaysia, Singapore, Sumatra, Borneo (both the Malaysian states of Sabah and Sarawak and Indonesian Kalimantan), and Java. It has also been recorded on numerous smaller islands in the Indonesian archipelago.

The species occupies a variety of forested habitats, from primary and secondary tropical lowland rainforest to peat swamp forest, mangrove edges, and disturbed landscapes including rubber and oil palm plantations adjacent to forest. It ranges from sea level to approximately 1,700 metres elevation. The Sunda pangolin is semi-arboreal: it forages and rests both on the ground and in trees, using tree hollows, burrows abandoned by other animals, and spaces among tree roots as den sites. Home range estimates vary widely by habitat quality, from less than 10 hectares in high-quality forest to over 40 hectares in degraded landscapes.

Diet and Behaviour

The Sunda pangolin is strictly nocturnal and solitary, emerging from its den after sunset to forage along established routes within its home range. It feeds exclusively on ants and termites, locating prey through smell and detecting vibrations in the substrate. Upon finding a nest, it uses its powerful forelimb claws to tear open the structure and inserts its long, sticky tongue — which can extend approximately 40 centimetres beyond the mouth — to extract the insects. A single individual may consume up to 200,000 ants and termites per night.

The Sunda pangolin’s semi-arboreal lifestyle distinguishes it from the purely terrestrial Indian pangolin and the largely ground-dwelling Chinese pangolin. It is frequently observed climbing trees to access arboreal termitaria, and it uses its prehensile tail as an anchor while hanging from branches during foraging.

Females give birth to a single offspring after a gestation period of approximately 130 to 150 days. The newborn weighs around 200 to 300 grams and has soft scales that harden within the first few days. For the first weeks of life, the young pangolin remains in the den while the mother forages, transitioning to riding on the mother’s tail base as it grows. Juveniles are weaned at around three to four months and become independent at approximately six months. Sunda pangolins are believed to live 15 to 20 years in the wild, though reliable longevity data remain scarce.

Threats

Commercial trafficking

The Sunda pangolin is the most heavily trafficked mammal species globally. Demand is driven primarily by traditional medicine markets in China and Vietnam, where pangolin scales are falsely believed to treat conditions including arthritis, inflammation, and lactation difficulties. Despite having no proven medicinal efficacy beyond a placebo effect — pangolin scales are composed of keratin, the same protein found in human fingernails — demand remains entrenched. Pangolin meat is simultaneously valued as a luxury food and status symbol in upscale restaurants across China and Vietnam.

The scale of trafficking is staggering. Between 2010 and 2025, customs authorities across Asia seized tens of thousands of whole pangolins and hundreds of tonnes of scales originating from or transiting through Southeast Asian countries within the Sunda pangolin’s range. A single seizure in Malaysia in 2017 recovered over 30 tonnes of frozen pangolins, representing thousands of individuals. Experts estimate that seizures represent only 10 to 20 percent of actual trade volumes, implying that the true harvest far exceeds what enforcement intercepts.

Habitat loss

Southeast Asia has one of the highest rates of tropical deforestation in the world, driven by expansion of oil palm, rubber, and pulpwood plantations. Between 2001 and 2020, Indonesia alone lost over 26 million hectares of tree cover. This directly reduces and fragments the forest habitat on which the Sunda pangolin depends for foraging, denning, and dispersal. While the species can persist in some degraded landscapes, large-scale conversion eliminates the structural complexity — tree hollows, fallen logs, intact termitaria — essential for its survival.

Hunting for local consumption

In addition to commercial trafficking, the Sunda pangolin is hunted for local consumption across much of its range. In rural communities in Myanmar, Laos, and parts of Indonesia, pangolin meat is eaten as bushmeat and scales are used in local traditional medicine. This subsistence-level hunting, while less visible than international trafficking, adds significant cumulative pressure to populations already in steep decline.

Conservation Status and Efforts

The IUCN classified the Sunda pangolin as Critically Endangered in 2014, reflecting an estimated population decline of more than 80 percent over three generations (approximately 21 years) driven primarily by exploitation. All eight pangolin species were listed on CITES Appendix I in 2017, banning all international commercial trade.

Conservation efforts span multiple fronts. In Malaysia, the Sabah Wildlife Department has established pangolin rehabilitation and release programmes, and community-based monitoring in Borneo has improved detection of poaching activities. In Thailand, the Department of National Parks operates confiscation centres and has increased penalties for pangolin trafficking. Vietnam’s Save Vietnam’s Wildlife (SVW) runs one of the most active pangolin rescue and rehabilitation facilities in Asia, having released hundreds of confiscated Sunda pangolins back into protected forests.

Demand reduction campaigns, particularly in China and Vietnam, seek to erode the cultural acceptability of consuming pangolin products. China’s 2020 removal of pangolin scales from the official traditional medicine pharmacopoeia was a significant policy milestone, though enforcement and black-market trading remain persistent challenges. Across the species’ range, the fundamental equation remains unchanged: without reducing consumer demand, supply-side enforcement alone cannot reverse the decline of Manis javanica.

The crisis facing the Sunda pangolin resonates directly with conservation work in southern Africa. As Asian pangolin populations collapse, trafficking networks increasingly turn to African species — particularly Temminck’s ground pangolin and the white-bellied pangolin — as substitute supply. The fates of all eight pangolin species are inextricably linked through a single global market.

Why the Sunda Pangolin Matters

The Sunda pangolin is both an ecological keystone and a conservation symbol. As a specialised insectivore, it regulates ant and termite populations across Southeast Asian forest ecosystems, contributing to nutrient cycling and soil health. The species has become the global emblem of the illegal wildlife trade — a test case for whether international agreements like CITES, combined with demand reduction and law enforcement, can prevent the extinction of a commercially exploited species in the twenty-first century.

Its survival depends on a combination of strengthened protected-area management across Southeast Asia, disruption of trafficking networks linking source and destination countries, meaningful reduction in consumer demand in China and Vietnam, and cross-continental cooperation that recognises the interconnected nature of African and Asian pangolin markets. Every Sunda pangolin saved from the trade is a step toward securing the future of all eight pangolin species.