Sumatran Rhino

The Sumatran rhino has crashed by more than 80% over recent decades, driven first by relentless poaching for its horns and then by the loss and fragmentation of its lowland rainforest. The animals that remain are scattered across a handful of isolated pockets in Indonesia, separated by plantations, roads and human settlement. Because the species is solitary and naturally low in density, these tiny groups rarely encounter one another, so breeding has all but stalled in the wild. Females that go too long without mating can develop reproductive problems, compounding the decline. With perhaps only a few dozen animals left, the IUCN warns the species could vanish without urgent intervention.

This is a forest specialist — a shy, mostly solitary browser that feeds on saplings, leaves, twigs, fruit and bark from more than a hundred plant species, eating tens of kilograms a day. It frequents mineral licks and wallows in mud to cool down and protect its skin, and is a capable swimmer and climber of steep terrain. Sumatran rhinos communicate over distance with whistles, squeaks and other vocalisations, more vocal than their larger relatives. Two horns, fringed ears and that distinctive coat of coarse hair make it unmistakable among rhinos and link it visually to its Ice Age ancestors.

Saving the Sumatran rhino now hinges on a two-pronged effort: protecting and monitoring the last wild animals, and bringing isolated individuals into a managed captive-breeding programme so that they can reproduce safely under expert care. In Indonesia, sanctuary teams track wild rhinos, run anti-poaching patrols, secure forest habitat, and provide round-the-clock veterinary support to breeding animals. Each successful birth is hard-won and significant given how few animals exist. This work depends on trained local rangers, veterinarians and sanctuary staff operating in remote, difficult forest — and on the sustained funding that keeps them in the field.