Javan Rhinoceros

Rhinoceros sondaicus

The Javan rhinoceros (Rhinoceros sondaicus) is a critically endangered one-horned rhino now surviving only in Ujung Kulon National Park on the western tip of Java. It is smaller and shyer than the Indian rhinoceros, with loose gray skin folds, a prehensile upper lip for browsing, and a single small horn that is usually most visible on adult males. The species once ranged across parts of South and Southeast Asia, but hunting, habitat loss, and small-population pressures eliminated all other known populations.

No Javan rhinos are maintained in zoos, so their future depends on reserve management and field conservation. Park teams use camera traps, patrols, habitat surveys, and individual identification to track births, deaths, and territory use without disturbing the animals. Practical work includes protecting wallows and mineral sites, reducing invasive Arenga palm where it suppresses rhino food plants, and limiting disease risks from nearby livestock. Conservation planning also considers the danger of having a single population exposed to tsunami, volcanic, disease, and genetic risks.