Black Rhinoceros - History, biology, causes of endangerment, and conservation efforts. Includes a photo. White Rhinoceros (Ceratotherium simum) - Includes photos, videos and information about diet, habitat, predators, offspring, social life, intelligence, senses, weight, height and life span. Black Rhinoceros - Ecobeetle - Facts and conservation links. Greater Indian Rhinoceros (Rhinoceros unicornis) - Includes facts, photos, and a video of this mammal. SOS Rhino - Provides funds and technical assistance for in-situ and ex-situ research, education, public awareness, and endeavors directed to secure the survival of the rhinoceros. Includes program details, multimedia, and research updates. Rhino Resource Center - Provides a searchable database of information on the rhinoceros and is dedicated to the dissemination of knowledge on the five endangered species. The White Rhinoceros: Ceratotherium simum - Research project by Michael Gatzke on this endangered mammal, including its classification, habitat, reproduction, nutrition, philogeny and interactions with other species. Sumatran Rhinoceros (Dicerorhinus sumatrensis) - Fact sheet from EDGE, a conservation organization that focuses specifically on threatened species that represent a significant amount of unique evolutionary history. Black Rhinoceros (Diceros bicornis) - Fact sheet from EDGE, a conservation organization that focuses specifically on threatened species that represent a significant amount of unique evolutionary history. Javan Rhinoceros (Rhinoceros sondaicus) - Fact sheet from EDGE, a conservation organization that focuses specifically on threatened species that represent a significant amount of unique evolutionary history. Indian Rhinoceros (Rhinoceros unicornis) - Fact sheet from EDGE, a conservation organization that focuses specifically on threatened species that represent a significant amount of unique evolutionary history. Sumatran Rhinoceros: Dicerorhinus sumatrensis - Many videos and photographs with details of classification, status, description, range, habitat, biology, threats and conservation. Black Rhinoceros: Diceros bicornis - Many videos and photographs with details of classification, status, description, range, habitat, biology, threats and conservation. International Rhino Foundation - This organisation is dedicated to the survival of the world’s rhino species through conservation and research. Provides much information on rhinoceroses. Eastern Black Rhinoceros (Diceros bicornis michaeli) - Includes photo and facts about the range, status, habitat, niche, life history, and special adaptations of this mammal. Indian Rhinoceros (Rhinoceros unicornis) - Narrative on this species from the University of Michigan. Includes photos.