The Southern White Rhinoceros (Ceratotherium simum cottoni) belongs to the order Perissodactyla, family Rhinocerotidae, and is one of two subspecies of the white rhinoceros. Historically confined to the grasslands and savannas of southern Africa, today its range includes protected areas in South Africa, Namibia, Zimbabwe, and a small reintroduced population in Kenya. It prefers open, gently rolling plains with abundant short grasses, where its massive, barrel‑shaped body can graze efficiently. Distinctive features include a broad, square‑shaped head, a large horn (up to 150 cm) and a smaller anterior horn, thick skin that appears white‑gray, and relatively small ears. The subspecies was once on the brink of extinction, with fewer than 50 individuals in the early 20th century, but intensive anti‑poaching, translocation, and managed breeding have raised the global population to roughly 2,300 individuals, earning it a IUCN status of Near Threatened. Ongoing conservation focuses on habitat protection, community engagement, and de‑horning programs to deter illegal trade.

Southern white rhinos are primarily diurnal grazers that form loose, matriarchal groups called “crashes” consisting of several females and their offspring, overseen by a dominant territorial male. Bachelor males form smaller, fluid groups that roam larger areas in search of breeding opportunities. Home ranges overlap, and individuals communicate through scent marking, dung middens, and vocalizations such as grunts, snorts, and low-frequency bellows. Territorial males patrol their area by foot‑stamping and wallowing in mud, both to cool themselves and to leave visual and olfactory cues. While generally solitary when feeding, the species exhibits strong social bonds among females, who cooperate in calf rearing and predator vigilance. Seasonal movements are limited; instead, individuals adjust grazing patterns in response to rainfall and grass growth cycles.

The Southern White Rhinoceros is a strict herbivore, classified as a grazer. Its diet consists of 80–90% grasses such as Themeda triandra, Hyparrhenia spp., and Digitaria spp., supplemented by occasional browse on leaves, shoots, and fruits when grass quality declines. An adult consumes 30–50 kg (66–110 lbs) of vegetation daily, spending up to 8 hours grazing. Feeding is highly selective; the animal uses its prehensile upper lip to grasp and pull grass blades while discarding inedible material. During the dry season, it may shift to more fibrous grasses and increase browsing on woody plants. Water intake is modest, as the high moisture content of fresh grasses provides most of its hydration, but individuals will drink from waterholes when necessary, especially during droughts.

Females reach sexual maturity at 5–7 years, while males mature later at 7–10 years. Breeding occurs year‑round but peaks during the rainy season when food is abundant. After a gestation period of 15–16 months, a single calf is born, weighing 45–65 kg. Calves are precocial, standing within an hour of birth, and remain closely attached to their mother for 2–3 years, during which they learn grazing routes and social cues. Maternal care includes frequent nursing, protection from predators, and guidance to water sources. Inter‑birth intervals average 2.5–3 years, influenced by the mother’s condition and environmental factors. Males compete for access to estrous females through displays of size, horn sparring, and vocalizations, but overt aggression is relatively rare compared to other rhinoceros species.

The IUCN lists the Southern White Rhinoceros as Near Threatened, with the primary threat being illegal poaching for its horns, which are valued in black‑market trade. Although numbers have risen, the species remains vulnerable; in 2023, poaching incidents resulted in the loss of approximately 30 individuals across southern Africa. Habitat loss from agricultural expansion, mining, and infrastructure development fragments populations and limits grazing corridors. Climate change exacerbates water scarcity and alters grassland composition, potentially reducing food availability. Disease outbreaks, such as anthrax, also pose localized risks. Conservation efforts include intensive anti‑poaching patrols, community‑based stewardship programs, de‑horning to deter poachers, and translocation to establish new, secure populations. Current estimates place the total wild population at about 2,300 individuals, with roughly 1,800 in South Africa, 300 in Namibia, 100 in Zimbabwe, and a nascent group of 30 in Kenya.

• The Southern White Rhino’s horns are made of keratin, the same protein as human hair and nails.
• It can run up to 50 km/h (31 mph) despite its massive size.
• Unlike other rhinos, it has a relatively flat, wide mouth adapted for grazing.
• The subspecies was saved from extinction by a handful of individuals transferred to private reserves in the 1960s.
• De‑horning, performed under anesthesia, reduces poaching risk without harming the animal’s health.