1. Black Rhinoceros (_Diceros bicornis_): Critically endangered
There are approximately 5,630 individuals left in the wild. Main threats: poaching for their horns, habitat loss, and competition with domestic livestock.
2. White Rhinoceros (_Ceratotherium simum_): Critically endangered
There are around 19,682 white rhinos in various subspecies, including Southern white rhinos and Northern white rhinos. Once found in abundance across Africa, their numbers have declined due to poaching and habitat destruction.
3. Greater One-Horned Rhinoceros (_Rhinoceros unicornis_): Vulnerable
There are approximately 3,700 greater one-horned rhinos in the world, with the majority found in protected areas in India and Nepal. Threats include habitat loss, poaching for their horns, and illegal trade.
4. Sumatran Rhinoceros (_Dicerorhinus sumatrensis_): Critically endangered
With an estimated population of fewer than 80 individuals, the Sumatran rhinoceros is critically endangered. Found only in the rainforests of Sumatra and Borneo, they are threatened by habitat loss and poaching.
5. Javan Rhinoceros (_Rhinoceros sondaicus_): Critically endangered
The Javan rhinoceros is the most critically endangered rhinoceros species. With only around 72-80 individuals left on Java, Indonesia, it faces habitat loss, poaching, and illegal trade. Protecting these rhinos requires stringent measures to combat poaching and preserve their remaining habitats.