Perissodactyla is an order of ungulates. The order includes about 17 living species divided into three families: Equidae, Rhinocerotidae (rhinoceroses), and Tapiridae (tapirs). They typically have reduced the weight-bearing toes to three or one of the five original toes, though tapirs retain four toes on their front feet. The nonweight-bearing toes are either present, absent, vestigial, or positioned posteriorly. By contrast, artiodactyls bear most of their weight equally on four or two of the five toes: their third and fourth toes. Another difference between the two is that odd-toed ungulates digest plant cellulose in their intestines, rather than in one or more stomach chambers as even-toed ungulates, with the exception of Suina, do.
The Javan rhinoceros, Javan rhino, Sunda rhinoceros or lesser one-horned rhinoceros is a critically endangered member of the genus Rhinoceros, of the rhinoceros family, Rhinocerotidae, and one of the five remaining extant rhinoceros species across South Asia and Africa. The Javan rhinoceros is one of the smallest rhinoceros species, along with the Sumatran, or "hairy", rhinoceros. They are superficially similar to Indian one-horned rhinos, as they have plate-like, "armored" protective skin folds, but are slightly smaller in size, at just 3.1–3.2 m (10–10 ft) long and 1.4–1.7 m (4.6–5.6 ft) tall, on average. The heaviest specimens weigh around 2,300 kg/2.3 tonnes, similar to an African black rhinoceros. However, unlike the long and potentially lethal horns of the black or white rhinoceroses of Africa, the Javan species' single, somewhat blunted horn is usually shorter than 25 cm (9.8 in).
The Sumatran rhinoceros, also known as the Sumatran rhino, hairy rhinoceros or Asian two-horned rhinoceros, is a rare member of the family Rhinocerotidae and one of five extant species of rhinoceros; it is the only extant species of the genus Dicerorhinus. It is the smallest rhinoceros, although it is still a large mammal; it stands 112–145 cm (44–57 in) high at the shoulder, with a head-and-body length of 2.36–3.18 m and a tail of 35–70 cm (14–28 in). The weight is reported to range from 500–1,000 kg (1,100–2,200 lb), averaging 700–800 kg (1,540–1,760 lb). Like both African species, it has two horns; the larger is the nasal horn, typically 15–25 cm (5.9–9.8 in), while the other horn is typically a stub. A coat of reddish-brown hair covers most of the Sumatran rhino's body.
A rhinoceros, commonly abbreviated to rhino, is a member of any of the five extant species of odd-toed ungulates in the family Rhinocerotidae; it can also refer to a member of any of the extinct species of the superfamily Rhinocerotoidea. Two of the extant species are native to Africa, and three to South and Southeast Asia.
The Indian rhinoceros, also known as the greater one-horned rhinoceros, great Indian rhinoceros, or Indian rhino for short, is a rhinoceros species native to the Indian subcontinent. It is the second largest extant species of rhinoceros, with adult males weighing 2.2 tonnes and adult females 1.6 tonnes. The skin is thick and is grey-brown in colour with pinkish skin folds. They have a single horn on their snout that grows to a maximum of 57.2 cm (22.5 in). Their upper legs and shoulders are covered in wart-like bumps. They are nearly hairless, aside from the eyelashes, ear fringes and tail brush.
Dicerorhinus is a genus of the family Rhinocerotidae, consisting of a single extant species, the two-horned Sumatran rhinoceros, and several extinct species. The genus likely originated in the Mid to Late Pliocene of Northern Indochina and South China. Many species previously placed in this genus probably belong elsewhere.
The white rhinoceros, white rhino or square-lipped rhinoceros is the largest extant species of rhinoceros. It has a wide mouth used for grazing and is the most social of all rhino species. The white rhinoceros consists of two subspecies: the southern white rhinoceros, with an estimated 16,803 wild-living animals, and the much rarer northern white rhinoceros. The northern subspecies has very few remaining individuals, with only two confirmed left in 2018. Sudan, the world's last known male Northern white rhinoceros, died in Kenya on 19 March 2018 at age 45.
Coelodonta is an extinct genus of rhinoceros that lived in Eurasia between 3.7 million years to 14,000 years ago, in the Pliocene and the Pleistocene epochs. It is best known from the type species, the woolly rhinoceros, which ranged throughout northern Eurasia during the Pleistocene. The earliest known species, Coelodonta thibetana, lived in Tibet during the Pliocene, with the genus spreading to the rest of Eurasia during the Pleistocene.
The Zoological Garden of Hamburg was a zoo in Hamburg, Germany that operated from 1863 until 1930. Its aquarium, which opened in 1864, was among the first in the world.
Nicolaas Jan van Strien, or just Nico van Strien, was a zoologist and conservationist of Dutch ancestry. He became notable for his conservation projects on the Sumatran Rhinoceros and the Javan Rhinoceros.
Francesco Romano Nardelli is an Italian naturalist who has dedicated his life to the protection and conservation of endangered species. He is also the co-founder, with John Aspinall, of the Sumatran Rhino Project, one of the most important coordinated efforts to save a critically endangered species.
Reserved wild animals are the highest class of protection for animal species in Thailand's wildlife conservation framework. There are currently twenty designated species, defined by The Wild Animal Conservation and Protection Act B.E. 2562 (2019). The 2019 act replaced the original law from 1992. The law prohibits hunting, breeding, possessing, or trading any of such species, except when done for scientific research with permission from the Permanent Secretary of National Park, Wildlife and Plant Conservation, or breeding and possession by authorised public zoos.
The existence of rhinoceroses in ancient China is attested both by archaeological evidence and by references in ancient Chinese literature. Depictions of rhinoceroses in ancient Chinese art are typically very accurate and lifelike, suggesting that they were modelled first-hand by the artist on living rhinoceroses rather than being based on legend or traveller's tales. The main species of rhinoceros that lived in China in ancient times has been identified as the Sumatran Rhinoceros, more especially the Northern Sumatran rhinoceros, although the Indian Rhinoceros and Javan Rhinoceros were also present.
Wallowing in animals is comfort behaviour during which an animal rolls about or lies in mud, water or snow. Some definitions include rolling about in dust, however, in ethology this is usually referred to as dust bathing. Wallowing is often combined with other behaviours to fulfil its purpose; for example, elephants will often blow dirt over themselves after wallowing to create a thicker "coating", or pigs will allow the mud to dry before rubbing themselves on a tree or rock to remove ectoparasites stuck in the mud.
The southern white rhinoceros or southern white rhino is one of the two subspecies of the white rhinoceros. It is the most common and widespread subspecies of rhinoceros.
The Bornean rhinoceros, also known as the eastern Sumatran rhinoceros or eastern hairy rhinoceros, is one of three subspecies of Sumatran rhinoceros. The subspecies was feared to be functionally extinct, with only one individual, a female named Pahu, surviving in captivity, and held in the state of Sabah. In April 2015, the Malaysian government declared the Bornean rhinoceros to be extinct in the wild in the Malaysian portion of Borneo. However, in March 2016, a young female rhino was captured in East Kalimantan, providing evidence of their continued existence. The International Union for Conservation of Nature (IUCN) classifies the subspecies as critically endangered.
Terri Lynn Roth is the vice president of Conservation and Science at the Cincinnati Zoo and Botanical Garden. Additionally, she is the director of the Center for Conservation and Research of Endangered Wildlife (CREW). She has made several breakthroughs in the captive breeding of Sumatran rhinoceroses, a critically endangered species with fewer than 300 left.
Bibhab Kumar Talukdar is an Indian conservation biologist. He is the founder of Aaranyak, a leading wildlife non-governmental organization based in Guwahati, India. It is a Scientific, Industrial Research and frontline environmental organization in India.
The western Sumatran rhinoceros is a subspecies of the Sumatran rhinoceros that is native to Sumatra, primarily within these Indonesian national parks: Bukit Barisan Selatan National Park, Kerinci Seblat National Park, Mount Leuser National Park, and its population is partially remaining in Way Kambas National Park. The subspecies went extinct in the Malaysian Peninsula. Its population is limited, with only around 275 rhinos left in the wild, from which they are being threatened by poaching, and occasional habitat loss. A few individuals are being held and bred in captivity within the Sumatran Rhino Sanctuary, and in the Cincinnati Zoo and Botanical Garden.
