Neil Aldridge / White rhinoceros (Ceratotherium simum) female 'Thandi' silhouetted against the sunset, Kariega Game Reserve. South Africa. Thandi's horns were taken in a brutal attack by poachers.

Pete Oxford / White Rhinoceros (Ceratotherium simum) mother and calf with Red-billed Oxpeckers (Buphagus erythrorhynchus), South Africa

Staffan Widstrand / White rhinoceros (Ceratotherium simum) close up portrait, iMfolozi National Park, South Africa

Ann & Steve Toon / White rhinoceros calf (Ceratotherium simum), Mkhuze Game Reserve, KwaZulu-Natal, South Africa, May

Sean Crane / White Rhinoceros (Ceratotherium simum) pair at sunrise, Lewa Wildlife Conservancy, Kenya

Richard Du Toit / White Rhinoceros (Ceratotherium simum) covered with mud, Kruger National Park, South Africa

Richard Du Toit / Red-billed Oxpecker (Buphagus erythrorhynchus) group on White Rhinoceros (Ceratotherium simum), Kruger National Park, South Africa

Richard Du Toit / Red-billed Oxpecker (Buphagus erythrorhynchus) group on White Rhinoceros (Ceratotherium simum), Kruger National Park, South Africa

Sergey Gorshkov / Red-billed Oxpecker (Buphagus erythrorhynchus) trio on White Rhinoceros (Ceratotherium simum), Sabi-sands Game Reserve, South Africa

Richard Du Toit / White Rhinoceros (Ceratotherium simum) mother and calf with Cattle Egret (Bubulcus ibis), Rietvlei Nature Reserve, South Africa

Pete Oxford / White rhinoceros calf (Ceratotherium simum) Great Karoo. Private Reserve, South Africa. Endangered species

Alex Hyde / Beetle (Dynastes hyllus) male photographed on a white background. Captive orginating form central America.