All five rhino species face threats The Sumatran (Dicerorhinus sumatrensis) and Javan rhinos (Rhinoceros sondaicus), both native to Indonesia, are listed as critically endangered on the IUCN Red List. The greater one-horned rhino (Rhinoceros unicornis) in India and Nepal is classified as vulnerable. Meanwhile, the black rhino (Diceros bicornis) in Africa is considered critically endangered, and the white rhino (Ceratotherium simum) is near threatened. As Mongabay’s Spoorthy Raman reported earlier this month, a recent assessment from wildlife trade watchdog TRAFFIC and the IUCN, the global wildlife conservation authority, found that white, Javan and Sumatran rhinos continue to decline due to poaching, climate change, habitat loss and population fragmentation. However, black and greater one-horned rhino populations have experienced modest growth.