Rhino Resource Center

Welcome to the world's largest online rhinoceros library dedicated to assisting research and conservation efforts globally.

Unlike elephant tusks or cattle horns, rhino horns are made entirely of keratin — the same protein found in human hair and fingernails. They're essentially compressed hair that grows continuously throughout the rhino's life.

Learn more about rhinos

Rhino image of the day

The Rhino Image Library

The Rhino Image Library provides 7190 rhino related images.

Black rhinoceros in Ostfriesischer Zoo

Black rhino in Ostfriesischer Zoo

Scharf Regents Park

Griffith 1827 Rhinoceros unicornis

Chenu 1858 Sumatran

Desmarest 1819 camus

Desmarest 1819 double horns

Desmarest 1819 two species

Skulls by Cuvier

Andrassy 1853 Rhino capture

Giraud 1888 Congo

Rhinoceros and Euphorbia Trees 1910

Cecil Kop Zimbabwe

Mutirikwi Zimbabwe

skull of poached rhino

iMfolozi black rhino

iMfolozi white rhino

White rhino in river

Male rhino comfort

Rhino comfort behaviour

Hluhluwe 1998 white rhino

White rhino comfort behaviour

White rhino and tree trunk

Hluhluwe 1998 white rhino

White rhino with oxpeckers

Resting white rhino

Ithala 1998 white rhino

White rhino in South Africa

Three white rhino at Lichtenburg

Lichtenburg 1996 two adults and calf

See all images in the Rhino Image Library

The Rhino Document Library

The Rhino Document Library contains a total of 29459 references.

Payne, J.; Dixon, K.K.; Lusli, S.; Zainuddin, Z.Z.; Indrawan, M.; Rookmaaker, L.C.; Schaffer, N.E.; Wahab, A.Z.A.; Kretzschmar, P.; Havmoller, R.G.; Agil, M.; Yoganand, K. 2025. The most endangered extant rhino species is now on the verge of extinction. Pachyderm 66: 214-220.

Ferreira, S.; Spencer, J.; Stiles, D.; Emslie, K.; Singha, H.; Dutta, D.K.; Inov, S.; Goss, S. 2025. Review: Rhinos of the World: Ecology, conservation and management. Pachyderm 66: 221-236.

Knight, C.; Hofmeyr, M. 2025. Review: IUCN African rhino conservation 2025-2035, a contemporary strategic framework. Pachyderm 66: 237-238.

Vigne, L. 2025. Review: Charging at life: Peter ‘Mbobo’ Hitchins, a life in wildlife conservation. Pachyderm 66: 242-244.

Vigne, L. 2025. Review: Somerville, Africa’s Threatened Rhinos: a history of exploitation and conservation. Pachyderm 66: 239-241.

Dewhurst, C.; Reid, G. 2025. The relationship between Glyrostigma rhinocerontis and rhinos in East and southern Africa. Pachyderm 66: 211-213.

Helm, C.; Cawthra, H.; Daqm, O.; Vynck, J. de; Kunta, S.; Namce, U. 2025. Pleistocene rhinoceros tracks from the Cape coast of South Africa. Pachyderm 66: 177-185.

Khayale, C.; Kariuki, L.; Kanga, E.; Omondi, P.; Brett, R.; Oloo, T.; Mulama, M.; Okita-Ouma, B.; Gaymer, J.; Amin, R. 2025. Advancing black rhino conservation in Kenya: milestones and the strategic outlook for sustaining population recovery. Pachyderm 66: 101-110.

Dutta, D.K.; Sarmah, A.C.; Sharma, A.; Talukdar, B.K.; Swargowari, A. 2025. The recruitment pattern and inter-calving interval of the reintroduced greater one-horned rhinoceros (Rhinoceros unicornis) population in Manas National Park, Assam, India. Pachyderm 66: 72-84.

Talukdar, B.K. 2025. Asian Rhino Specialist Group Chair report. Pachyderm 66: 40-42.

Balfour, D.; Ferreira, S. 2025. African Rhino Specialist Group Chair report. Pachyderm 66: 13-39.

Robin des Bois 2025. Information sur braconnage des rhinoceros. A La Trace (Bulletin d’information et d’analyses sur le braconnage et la contrebande d’animaux) no. 47: 23-26.

PDF download available

Robin des Bois 2025. Notes on rhinoceros poaching. On the Trail (Information and analysis bulletin on animal poaching and smuggling) no. 45: 23-24.

PDF download available

Robin des Bois 2025. Notes on rhinoceros poaching. On the Trail (Information and analysis bulletin on animal poaching and smuggling) no. 46: 23-25.

Robin des Bois 2025. Information sur braconnage des rhinoceros. A La Trace (Bulletin d’information et d’analyses sur le braconnage et la contrebande d’animaux) no. 45: 23-24.

PDF download available

See all references in the Rhino Document Library

Black Rhino

Southern White Rhino

Nile Rhino

Greater One-horned Rhino

Javan Rhino

Sumatran Rhino

Fossil Rhino

Rhino collections

Carino Database

East Asian and West African Rhinos.

Galleria of Emilio Gargioni

Rhino Depictions In Contemporary Modern Art.

Geraads Fossil Rhino Database

Old World Neogene and Quaternary rhino-bearing localities.

History of Clara

Clara the Rhinoceros tells the marvellous story of the most famous rhinoceros in history.

Announcements

Our new website is now online

The Rhino Resource Centre has unveiled its completely redesigned website.

The Rhinoceros of South Asia – DISCOUNT

A book by Kees Rookmaaker with chapters by Joachim K. Bautze and Kelly Enright.

Are rhinos aggressive?

Despite their fearsome reputation and ability to charge at 50 kilometres per hour, rhinos are not naturally aggressive animals. They're more accurately described as defensive, preferring to be left alone to graze peacefully.

Learn more about rhinos

Black Rhino

Southern White Rhino

Nile Rhino

Greater One-horned Rhino

Javan Rhino

Sumatran Rhino

Fossil Rhino

Rhino Resource Center

Rhino horns are not what they seem

The Rhino Image Library

The Rhino Document Library

Black Rhino

Southern White Rhino

Nile Rhino

Greater One-horned Rhino

Javan Rhino

Sumatran Rhino

Fossil Rhino

Are rhinos aggressive?