Black Rhinoceros

Black Rhinoceros

Larger image (84K)

Scientific classification

Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Perissodactyla
Family:	Rhinocerotidae
Genus:	Diceros
Species:	bicornis

Binomial name

Diceros bicornis

The Black Rhinoceros (Diceros bicornis) is a mammal of the Perissodactyla order which lives in the eastern areas of Africa including Kenya, Tanzania, Cameroon, South Africa, Namibia and Zimbabwe. The black rhinoceros is on the endangered species list primarily due to excessive hunting for their horns, which are used primarily in Asian medications although the health benefits have not been proven scientifically.

An adult black rhinoceros stands 5 feet (1.5 metres) high at the shoulder and is anywhere from 10 to 12 feet (3 to 3.65 metres) in length. An adult weighs from 1,000 to 3,000 lbs. (454 to 1362 kg), with the female being smaller. Two horns on the skull are made of keratin with the larger front horn as high as 28 inches (71 cm). Occasionally, a third smaller horn may develop. Skin color depends more on local soil conditions and their wallowing behaviour than anything else, so many black rhinos are typically not truly black in color.

The adults are solitary in nature but come together for mating, with the females accompanying their young during the rearing period. Sometimes, mothers and daughters may form small groups.

Subspecies

There are four subspecies of the black rhinoceros:

South-central (Diceros bicornis minor) which are the most numerous, and once ranged from central Tanzania south through Zambia, Zimbabwe and Mozambique to northern and eastern South Africa.
South-western (Diceros bicornis bicornis) which are better adapted to the arid and semi-arid savannas of Namibia, southern Angola, western Botswana and western South Africa.
East African (Diceros bicornis michaeli) which had a historic distribution from south Sudan, Ethiopia, Somalia down through Kenya into north-central Tanzania. Today, its range is limited primarily to Tanzania.
West African (Diceros bicornis longipes) is the rarest and most endangered subspecies. Historically, it once occurred across most of the west African savanna. Nowadays, only a few individuals survive in northern Cameroon.

Adaptation

The black rhinoceros has adapted to its habitat using the following characteristics:

A thick, layered skin protects the rhino from thorns and sharp grasses.
The soles of their feet are thickly padded to cushion the legs and absorb shock.
The upper lip has been adapted for seizing and grasping (prehensile) objects which helps in browsing and foraging.
The large ears rotate to pick up multi-directional sounds.
The large nose has an excellent sense of smell to detect predators.
Two formidable horns are used for defense and intimidation.
An aggressive disposition discourages predators. The animal's nearsightedness seems to urge the rhino to charge first and investigate later.

Diet and Mating

The black rhinoceros is a herbivorous browser that eats leafy plants, branches, shoots, thorny wood bushes and fruit. Their diet helps to reduce the amount of woody plants which results in more grasses growing for the benefit of other animals. Their skin harbors many external parasites, which are eaten by tickbirds and egrets that live with the rhino.

The females mature between four and six years of age while the males take a little longer, between seven and nine years. Mating does not have a seasonal pattern but live births tend to be towards the end of the rainy season in drier environments. A new born (calf) averages 85 pounds (38 kg) after a 15-16 month gestation period, and can follow its mother around after just three days. The young are a favorite target of hyenas and lions. Generally, females produce calves every two to three years. The lifespan for black rhinos is between 25 to 40 years but they can live up to 50 years in captivity.

Population

The population of black rhinos have been severely reduced in the latter half of the 20th century. In the late 1960s, an estimated 70,000 strong lived in Africa. By 1991, only 10,000 to 15,000 remained in the wild and by 1993 only 2,475 black rhinos were reported to exist. According to the IUCN/SSC African Rhino Specialist Group, the population had recovered slightly to 2,599 by 1999. As few as five individuals of the West African subspecies may remain.

References

http://www.panda.org/about_wwf/what_we_do/species/what_we_do/flagship_species/rhinos/black_rhino/

Image Slideshow: Black Rhinoceros

Frequency of Internet Keywords: Black Rhinoceros

Modern Translations: Black Rhinoceros

Language		Translations for "black rhinoceros"; alternative meanings/domain in parentheses.
Dutch		zwarte neushoorn. (various references)

Japanese Kanji		烏犀�' (black rhinoceros horn). (various references)

Japanese Katakana		うさいかく (black rhinoceros horn). (various references)

Pig Latin		ackblay inocerosrhay

Shona		nhema. (various references)

Swazi		bhéjané. (various references)

Zulu		ubhejane. (various references)
Source: compiled by the editor from various translation references.

Anagrams: Black Rhinoceros

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-b-c-c-e-h-i-k-l-n-o-o-r-r-s"
	-4 letters: bronchiolar, bronchioles, chroniclers, cornerbacks.
	-5 letters: bronchiole, charbroils, chloracnes, chronicler, chronicles, cochineals, corncrakes, cornerback, coronaries, honoraries, isochronal, kohlrabies, rainchecks, resorcinol, rhinoceros, shrinkable.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

Alternative Orthography: Black Rhinoceros

Hexadecimal (or equivalents, 770AD-1900s) (references)

42 6C 61 63 6B 52 68 69 6E 6F 63 65 72 6F 73

Leonardo da Vinci (1452-1519; backwards) (references)

Binary Code (1918-1938, probably earlier) (references)

01000010 01101100 01100001 01100011 01101011 00100000 01010010 01101000 01101001 01101110 01101111 01100011 01100101 01110010 01101111 01110011

HTML Code (1990) (references)

&#66 &#108 &#97 &#99 &#107 &#32 &#82 &#104 &#105 &#110 &#111 &#99 &#101 &#114 &#111 &#115

ISO 10646 (1991-1993) (references)

0042 006C 0061 0063 006B 0052 0068 0069 006E 006F 0063 0065 0072 006F 0073

Encryption (beginner's substitution cypher): (references)

Black Rhinoceros

Definition: Black Rhinoceros