Cheetah Totally Explained

Everything about Acinonyx totally explained

The cheetah (Acinonyx jubatus) is an atypical member of the cat family (Felidae) that's unique in its speed and stealth, while lacking climbing abilities. As such, it's placed in its own genus, Acinonyx. It is the fastest land animal, reaching speeds between and in short bursts covering distances up to, and has the ability to accelerate from 0 to in three seconds, greater than most supercars.
The word "cheetah" is derived from the Sanskrit word chitrakāyaḥ, meaning "variegated body", via the Hindi चीता cītā.

Description

   The cheetah's chest is deep and its waist is narrow. The coarse, short fur of the cheetah is tan with round black spots measuring from to across, affording it some camouflage while hunting. There are no spots on its white underside, but the tail has spots, which merge to form four to six dark rings at the end. The tail usually ends in a bushy white tuft. The cheetah has a small head with high-set eyes. Black "tear marks" run from the corner of its eyes down the sides of the nose to its mouth to keep sunlight out of its eyes and to aid in hunting and seeing long distances.
   The adult cheetah weighs from to . Its total body length is from to, while the tail can measure up to in length. Males tend to be slightly larger than females and have slightly bigger heads, but there isn't a great variation in cheetah sizes and it's difficult to tell males and females apart by appearance alone. Compared to a similarly-sized leopard, the cheetah is generally shorter-bodied, but is longer tailed and taller (it averages about tall) and so it appears more streamlined.
   Some cheetahs also have a rare fur pattern mutation: cheetahs with larger, blotchy, merged spots are known as 'king cheetahs'. It was once thought to be a separate subspecies, but it's merely a mutation of the African cheetah. The 'king cheetah' has only been seen in the wild a handful of times, but it has been bred in captivity.
   The cheetah's paws have semi-retractable claws (known only in three other cat species - the Fishing Cat, the Flat-headed Cat and the Iriomote Cat) offering the cat extra grip in its high-speed pursuits. The ligament structure of the cheetah's claws is the same as those of other cats; it simply lacks the sheath of skin and fur present in other varieties, and therefore the claws are always visible, with the exception of the dewclaw. The dewclaw itself is much shorter and straighter than other cats.
   Adaptations that enable the cheetah to run as fast as it does include large nostrils that allow for increased oxygen intake, and an enlarged heart and lungs that work together to circulate oxygen efficiently. During a typical chase its respiratory rate increases from 60 to 150 breaths per minute.

Reproduction and social life

Females reach maturity within twenty to twenty-four months, and males around twelve months (although they don't usually mate until at least three years old), and mating occurs throughout the year. A recent study of cheetahs in the Serengeti showed that female cheetahs are sexually promiscuous and often have cubs by many different males.
Females give birth to up to nine cubs after a gestation period of ninety to ninety-eight days, although the average litter size is three to five. Cubs weigh from to at birth. Unlike some other cats, the cheetah is born with its characteristic spots. Cubs are also born with a downy underlying fur on their necks, called a mantle, extending to mid-back. This gives them a mane or Mohawk-type appearance; this fur is shed as the cheetah grows older. It has been speculated that this mane gives a cheetah cub the appearance of the ratel, to scare away potential aggressors. Cubs leave their mother between thirteen and twenty months after birth. Life span is up to twelve years in the wild, but up to twenty years in captivity.
Unlike males, females are solitary and tend to avoid each other, though some mother/daughter pairs have been known to be formed for small periods of time. The cheetah has a unique, well-structured social order. Females live alone except when they're raising cubs and they raise their cubs on their own. The first eighteen months of a cub's life are important - cubs learn many lessons because survival depends on knowing how to hunt wild prey species and avoid other predators. At eighteen months, the mother leaves the cubs, who then form a sibling, or "sib" group, that will stay together for another six months. At about two years, the female siblings leave the group, and the young males remain together for life.

Territories

Males

Males are very sociable and will group together for life, usually with their brothers in the same litter; although if a cub is the only male in the litter then two or three lone males may group up, or a lone male may join an existing group. These groups are called coalitions. A coalition is six times more likely to obtain an animal territory than a lone male, although studies have shown that coalitions keep their territories just as long as lone males — between four and four and a half years.
Males are very territorial. Females' home ranges can be very large and trying to build a territory around several females' ranges is impossible to defend. Instead, males choose the points at which several of the females' home ranges overlap, creating a much smaller space, which can be properly defended against intruders while maximizing the chance of reproduction. Coalitions will try their most to maintain territories in order to find females with whom that'll mate. The size of the territory also depends on the available resources; depending on the part of Africa, the size of a male's territory can vary greatly from 37 to 160 square kilometers.
Males mark their territory by urinating on objects that stand out, such as trees, logs, or termite mounds. The whole coalition contributes to the scent. Males will attempt to kill any intruders and fights result in serious injury or death.

Females

Unlike males and other felines, females don't establish territories. Instead, the area they live in is termed a home range. These overlap with other females' home ranges; often it'll be the sisters from the same litter or a daughter's home range overlapping with her mother's. Females, however, always hunt alone, although once their cubs reach the age of five to six weeks they take them along to show them how it's done. The size of a home range depends entirely on the availability of prey. Cheetahs in southern African woodlands have ranges as small as 34 square km, while in some parts of Namibia they can reach . Although there have been no studies, it's expected that the home ranges of females in the Sahara desert have the largest of all the cheetah populations.

Vocalizations

The cheetah can't roar, unlike other big cats, but does have the following vocalizations:

Yipping - When cheetahs attempt to find each other, or a mother tries to locate her cubs, it uses a high-pitched barking called yipping. The yips made by a cheetah cub sound more like a bird chirping, and so are termed chirping.
Churring or stuttering - This vocalization is emitted by a cheetah during social meetings. A churr can be seen as a social invitation to other cheetahs, an expression of interest, uncertainty, or appeasement or during meetings with the opposite sex (although each sex churrs for different reasons).
Growling - This vocalization is often accompanied by hissing and spitting and is exhibited by the cheetah during annoyance, or when faced with danger.
Yowling - This is an escalated version of growling, usually displayed when danger worsens.
Purring - This is made when the cheetah is content, usually during pleasant social meetings (mostly between cubs and their mothers).

Interspecific predatory relationships

Cheetahs are outranked by all the other large predators in most of their range. Because they're designed for extreme bursts of short speed at the expense of both power and the ability to climb trees, they can't defend themselves against most of Africa's other predator species. They avoid fighting typically and will surrender a kill immediately to even a single hyena, rather than risk any injury, as anything that slows them down is essentially life threatening. The cheetah's death rate is very high during the early weeks of its life; up to 90% of cheetah cubs are killed during this time by lions, leopards, hyenas or even by eagles. Cheetah cubs often hide in thick brush for safety. Mother cheetahs will defend their young and are at times successful in driving predators away from their cubs. Coalitions of male cheetahs can also chase away other predators, depending on the coalition size and the size and number of the predator. Because of its speed, a healthy adult cheetah has no predators.
A cheetah has a 50% chance of losing its kills to other predators. the distribution of the cheetah is now limited to Africa.
Of the five subspecies of cheetah in the genus Acinonyx, four live in Africa and one in Iran. It is possible, though doubtful, that some cheetahs remain in India. There have also been several unconfirmed reports of Asiatic cheetahs in the Balochistan province of Pakistan, with at least one dead animal being recovered recently.

Genetics and classification

The genus name, Acinonyx, means "no-move-claw" in Greek, while the species name, jubatus, means "maned" in Latin, a reference to the mane found in cheetah cubs.
   The cheetah has unusually low genetic variability and a very low sperm count, which also suffers from low motility and deformed flagellae Cheetahs are included on the World Conservation Union (IUCN) list of vulnerable species (African subspecies threatened, Asiatic subspecies in critical situation) as well as on the U.S. ESA: threatened species - Appendix I of CITES (Convention on International Trade in Endangered Species). Approximately 12,400 cheetahs remain in the wild in twenty-five African countries; Namibia has the most, with about 2,500. Another fifty to sixty critically endangered Asiatic cheetahs are thought to remain in Iran. There have been successful breeding programs, including the use of in-vitro fertilization, in zoos around the world.
   Founded in Namibia in 1990, the Cheetah Conservation Fund's mission is to be an internationally recognised centre of excellence in research and education on cheetahs and their eco-systems, working with all stakeholders to achieve best practice in the conservation and management of the world's cheetahs. The CCF has also set stations throughout South Africa in order to keep the conservation effort going.
   The Cheetah Conservation Foundation was set up in 1993 for cheetah protection. It is based in South Africa.

Cultural references to cheetahs

In Titian's Bacchus and Ariadne (1523), the god's chariot is borne by cheetahs (which were used as hunting animals in Renaissance Italy). Cheetahs were often associated with the god Dionysus, whom the Romans called Bacchus.

George Stubbs' Cheetah with Two Indian Attendants and a Stag (1764-1765) also shows the cheetah as a hunting animal and commemorates the gift of a cheetah to George III by the English Governor of Madras, Sir George Pigot

The Caress (1896), by the Belgian symbolist painter Fernand Khnopff (1858-1921), is a representation of the myth of Oedipus and the Sphinx and portrays a creature with a woman's head and a cheetah's body (often misidentified as a leopard's).

André Mercier's Our Friend Yambo (1961) is a curious biography of a cheetah adopted by a French couple and brought to live in Paris. It is seen as a French answer to Born Free (1960), whose author, Joy Adamson, produced a cheetah biography of her own, The Spotted Sphinx (1969).

Clare Bell's young adult novel Tomorrow's Sphinx (1986) is an unusual story from the point of view of a misfit cheetah living on an abandoned Earth far in the future.

The animated series ThunderCats had a main character who was an anthropomorphic cheetah named Cheetara.

In 1986 Frito-Lay introduced an anthropomorphic cheetah, Chester Cheetah, as the mascot for their Cheetos.

Comic book superheroine Wonder Woman's chief adversary is Dr. Barbara Ann Minerva, alias The Cheetah

The 2005 movie Duma is about a young South African attempting to return his pet cheetah, Duma, to the wild, with many adventures along the way. It was based on the book "How It Was With Dooms: A True Story from Africa" by Carol Cawthra Hopcraft and Xan Hopcraft.

On the CGI animated show Beast Wars: Transformers, Cheetor, one of the main characters on the Maximal faction had the beast form of a cheetah. This was also carried over as the beast form of the Cheetor Hasbro transformer.

The Japanese anime Damekko Doubutsu features a clumsy but sweet-natured cheetah named Chiiko.

The first release of Apple Computer's Mac OS X was code-named "Cheetah," which set the pattern for the subsequent releases being named after big cats.Further Information

Get more info on 'Acinonyx'.

External Link Exchanges

Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:

<a href="http://cheetah.totallyexplained.com">Cheetah Totally Explained</a>

Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned.