A group of cats is referred to as a clowder, a male cat is called a tom, and a female is called a queen. The male progenitor of a cat, especially a pedigreed cat, is its sire, and its female progenitor is its dam. An immature cat is called a kitten (which is also an alternative name for young rats, rabbits, hedgehogs, beavers, squirrels and skunks). In medieval Britain, the word kitten was interchangeable with the word catling. A cat whhose ancestry is formally registered is called a pedigreed cat, purebred cat, or a show cat (although not all show cats are pedigreed or purebred). In strict terms, a purebred cat is one whose ancestry contains only individuals of the same breed. A pedigreed cat is one whose ancestry is recorded, but may have ancestors of different breeds (almost exclusively new breeds; cat registries are very strict about which breeds can be mated together). Cats of unrecorded mixed ancestry are reeferred to as domestic longhairs and domestic shorthairs or commonly as random-bred, moggies, mongrels, mutt-cats or alley cats. The ratio of pedigree/purebred cats to random-bred cats, varies from country to country. However, generally speaking, purebreds are less than ten percent of
The word cat derives from Old English catt, which belongs to a group of related words in European languages, including Latin cattus, Welsh cath, Spanish gato, Basque katu, Byzantine Greek κάττα, Old Irish cat, and Old Church Slavonic kotka. The ultimate source of all these terms, however, is unknown. However, it may be linked to the ancient Nubian kadis and the Berber kadiska.
The term puss (as in pussycat or Puss in boots) may come from Dutch (from “poes”, a female cat, or the diminutive “poesje”, an endearing term for any cat) or from other Germanic languages. However it has also been suggested that the name derives from “Pust”, an alternative name for the Ancient Egyptian cat goddess Baast.
The domestic cat was named Felis catus by Carolus Linnaeus in his Systema Naturae of 1758. Johann Christian Daniel von Schreber named the Wildcat Felis silvestris in 1775. The domestic cat was considered a subspecies of the Wildcat: by the strict rule of priority of the International Code of Zoological Nomenclature the name for the species thus ought to be F. catus since Linnaeus published first, and so almost all biologists use F. silvestris for the wild species, using F. catus on
In opinion 2027 (published in Volume 60, Part 1 of the Bulletin of Zoological Nomenclature, March 31 2003) the International Commission on Zoological Nomenclature “conserved the usage of 17 specific names based on wild species, which are predated by or contemporary with those based on domestic forms”, thus confirming F. silvestris for the Wildcat and F. silvestris catus for its domesticated cousin. F. catus is still valid if the domestic form is considered a separate species. Recent DNA and comparative bone research shows that the separate species name F. catus is correct after all. The results show little relation to the F. sylvestris group with F. catus being derived from F. lybica 7000 years ago when the very first small felines were domesticated in Asia Minor.
Johann Christian Polycarp Erxleben named the domestic cat Felis domesticus in his Anfangsgründe der Naturlehre and Systema regni animalis of 1777. This name, and its variants Felis catus domesticus and Felis silvestris domesticus, are often seen, but they are not valid scientific names under the rules of the International Code of Zoological Nomenclature.
Cats typically weigh between 2.5 and 7 kg (5.5–16 pounds); however, some breeds, such as the Maine Coon can exceed 11.3 kg (25 pounds). Some have been known to reach up to
Diagram of the general anatomy of a cat.
In captivity, indoor cats typically live 14 to 20 years, though the oldest-known cat lived to age 36. Domestic cats tend to live longer if they are not permitted to go outdoors (reducing the risk of injury from fights or accidents and exposure to diseases) and if they are spayed or neutered. Some such benefits are: neutered male cats cannot develop testicular cancer, spayed female cats cannot develop ovarian cancer, and both have a reduced risk of mammary cancer.
Cats also possess rather loose skin; this enables them to turn and confront a predator or another cat in a fight, even when it has a grip on them. This is also an advantage for veterinary purposes, as it simplifies injections. In fact, the life of cats with kidney failure can sometimes be extended for years by the regular injection of large volumes of fluid subcutaneously, which serves as an alternative to dialysis.
The particular loose skin at the back of the neck is known as the scruff, and is the area by which a mother cat grips her kittens to carry them. As
Like almost all mammals, cats possess seven cervical vertebrae. They have thirteen thoracic vertebrae (compared to twelve in humans), seven lumbar vertebrae (compared to five in humans), three sacral vertebrae like most mammals (humans have five because of their bipedal posture), and twenty-two or twenty-three caudal vertebrae (humans have three to five, fused into an internal coccyx). The extra lumbar and thoracic vertebrae account for the cat’s enhanced spinal mobility and flexibility, compared to humans; the caudal vertebrae form the tail, used by the cat for counterbalance to the body during quick movements.
Sixty-two individual muscles in the ear allow for a manner of directional hearing:the cat can move each ear independently of the other. Because of this mobility, a cat can move its body in one direction and point its ears in another direction. Most cats have straight ears pointing upward. Unlike dogs, flap-eared breeds are extremely rare. (Scottish Folds are one such exceptional genetic mutation.) When angry or frightened, a cat will lay its ears back, to accompany the growling or hissing sounds it makes. Cats will also turn their ears back when they are playing, or occasionally to show interest in a sound coming from behind them.
Cats, like dogs, are digitigrades: they walk directly on their toes, the bones of their feet making up the lower part of the visible leg. Cats are capable of walking very precisely, because like all felines they directly register; that is, they place each hind paw (almost) directly in the print of the corresponding forepaw, minimizing noise and visible tracks. This also provides sure footing for their hind paws when they navigate rough terrain.
Unlike dogs and most mammals, cats walk by moving both legs on one side and then both legs on the other. Most mammals move legs on alternate sides in sequence. Cats share this unusual gait with camels, giraffes, and a select few other mammals. There is no known connection between these animals which might explain this.
Like all members of family Felidae except the cheetah, cats have retractable claws. In their normal, relaxed position the claws are sheathed with the skin and fur around the toe pads. This keeps the claws sharp by preventing wear from contact with the ground and allows the silent stalking of prey. The claws on the forefeet are typically sharper than those on the hind feet. Cats can extend their claws voluntarily on one or more paws at will. Cats may extend their claws in hunting or self-defense, climbing, “kneading”, or for extra traction on soft surfaces (bedspreads, thick rugs, etc.). It is also possible to make a cooperative cat extend its claws by carefully pressing both the top and bottom of the paw. The curved claws may become entangled in carpet or thick fabric, which may cause injury if the cat is unable to free itself.
Most cats have 5 claws at their front paws, and 4 or 5 at their rear paws. Because of an ancient mutation, however, domestic cats are prone to polydactyly, and may have 6 or 7 toes. The fifth front claw (the thumb) is in a more proximal position than those of the other fingers. More proximally, there is a protrusion which appears to be a sixth “finger”. This special feature of the front paws, on the inside of the wrists, is the carpal pad, also found on the paws of big cats and dogs. It has no function in normal walking, but is thought to be an anti-skidding device while jumping. If present, the fifth claw at the rear legs, corresponding with the big toe, is called the dew-claw.
Perching and falling
Most breeds of cat have a noted fondness for settling in high places, or perching. Animal behaviorists have posited a number of explanations, the most common being that height gives the cat a better observation point, allowing it to survey its “territory” and become aware of activities of people and other pets in the area. In the wild, a higher place may serve as a concealed site from which to hunt; domestic cats are known to strike prey by pouncing from such a perch as a tree branch, as does a leopard. Height, therefore, can also give cats a sense of security and prestige.
This fondness for high spaces, however, can dangerously test the popular axiom that a cat “always lands on its feet.” The American Society for the Prevention of Cruelty to Animals warns owners to safeguard the more dangerous perches in their homes, to avoid “high-rise syndrome,” where an overconfident cat falls from an extreme height.
During a fall, a cat can reflexively twist its body and right itself using its acute sense of balance and flexibility.This is known as the cat’s “righting reflex.” It always rights itself in the same way, provided it has the time to do so, during a fall. The height required for this to occur in most cats (safely) is around 3 feet (90cm). Many cases are known of cats falling from substantial heights (5 to 10 stories) and surviving almost unscathed. To achieve this, cats probably relax their ventral muscles, “flattening” their bodies to some extent and creating more resistance to air. Contrary to popular belief, cats without a tail also have this ability, since a cat mostly moves its hindlegs and relies on conservation of angular momentum to set up for landing, and the tail is in fact little used for this feat
Cat senses are attuned for hunting. Cats have highly advanced hearing, eyesight, taste, and touch receptors, making the cat extremely sensitive among mammals. Cats’ night vision is superior to humans although their vision in daylight is inferior. Humans and cats have a similar range of hearing on the low end of the scale, but cats can hear much higher-pitched sounds, up to 64 kHz, which is 1.6 octaves above the range of a human, and even 1 octave above the range of a dog.A domestic cat’s sense of smell is about fourteen times as strong as a human’s. To aid with navigation and sensation, cats have dozens of movable vibrissae (whiskers) over their body, especially their face. Due to a mutation in an early cat ancestor, one of two genes necessary to taste sweetness has been lost by the cat family.
Many people characterise cats as ‘solitary’ animals. However, cats are actually highly social. A primary difference in social behaviour between cats and dogs (to which they are often compared) is that cats do not have a social survival strategy, or a ‘pack mentality’; however this only means that cats take care of their basic needs on their own (e.g., finding food, defending themselves, etc.). It is not the same thing as being asocial. Perhaps the best example of how domestic cats are ‘naturally’ meant to behave is to observe feral domestic cats, which often live in colonies, but in which each individual basically looks after itself.
Living with humans is a symbiotic social adaptation which has developed over thousands of years. The sort of social relationship cats have with their human keepers is hard to map onto more generalised wild cat behaviour, but it is certain that the cat thinks of the human differently than it does other cats (i.e., it does not think of itself as human, nor that the human is a cat). This can be seen in the difference in body and vocal language it uses with the human, when compared to how it communicates with other cats in the household, for example. Some have suggested that, psychologically, the human keeper of a cat is a sort of surrogate for the cat’s mother, and that adult domestic cats live forever in a kind of suspended kittenhood.
Cats conserve energy by sleeping more than most animals, especially as they grow older. Daily durations of sleep vary, usually 12–16 hours, with 13–14 being the average. Some cats can sleep as much as 20 hours in a 24-hour period. The term cat nap refers to the cat’s ability to fall asleep (lightly) for a brief period and has entered the English lexicon – someone who nods off for a few minutes is said to be “taking a cat nap”.
Due to their crepuscular nature, cats are often known to enter a period of increased hyperactivity and playfulness during the evening and early morning, dubbed the “evening crazies”, “night crazies” or “mad half-hour” by some.
The temperament of a cat can vary depending on the breed and socialization. Cats with “oriental” body types tend to be thinner and more active, while cats that have a “cobby” body type tend to be heavier and less active.
The normal body temperature of a cat is between 38 and 39 °C (101 and 102.2 °F).A cat is considered febrile (hyperthermic) if it has a temperature of 39.5 °C (103 °F) or greater, or hypothermic if less than 37.5 °C (100 °F). For comparison, humans have a normal temperature of approximately 36.8 °C (98.2 °F). A domestic cat’s normal heart rate ranges from 140 to 220 beats per minute, and is largely dependent on how excited the cat is. For a cat at rest, the average heart rate should be between 150 and 180 bpm, about twice that of a human.
Hunting and diet
ats are highly specialized for hunting, compared to other mammals such as dogs. This is now thought to be the indirect result of cats’ inability to taste sugars, thereby reducing their intake of plant foods. Since they have a greatly reduced need to digest plants, their digestive tract has evolved to be shorter, too short for effective digestion of plants but less of a weight penalty for the rapid movement required for hunting. Hunting has likewise become central to their behavior patterns, even to their predilection for short bursts of intense exercise punctuating long periods of rest.
Much like the big cats, domestic cats are very effective predators. They ambush and immobilize vertebrate prey using tactics similar to those of leopards and tigers by pouncing; then they deliver a lethal neck bite with their long canine teeth that severs the victim’s spinal cord, causes fatal bleeding by puncturing the carotid artery or the jugular vein, or asphyxiates it by crushing its trachea. The domestic cat can hunt and eat about one thousand species, many of them invertebrates, especially insects — many big cats will eat fewer than a hundred different species. Although, theoretically, big cats can kill most of these species as well, they often do not due to the relatively low nutritional content that smaller animals provide for the effort. An exception is the leopard, which commonly hunts rabbits and many other smaller animals.
Even well-fed domestic cats hunt and kill birds, mice, rats, scorpions, cockroaches, grasshoppers, and other small animals in the vicinity. They often present such trophies to their owner. The motivation is not entirely clear, but friendly bonding behaviors are often associated with such an action. It is probable that cats in this situation expect to be praised for their symbolic contribution to the group. Some theories suggest that cats see their owners gone for long times of the day and assume they are out hunting, as they always have plenty of food available. It is thought that a cat presenting its owner with a dead animal thinks it’s ‘helping out’ by bringing home the kill. Ethologist Paul Leyhausen, in an extensive study of social and predatory behavior in domestic cats (documented in his book Cat Behavior), proposed a mechanism which explains this presenting behavior. In simple terms, cats adopt humans into their social group, and share excess kill with others in the group according to the local pecking order, in which humans place at or near the top. Another possibility is that presenting the kill might be a relic of a kitten feline behaviour of demonstrating for its mother’s approval that it has developed the necessary skill for hunting.
Due to their hunting behaviour, in many countries feral cats are considered pests. Domestic cats are occasionally also required to have contained cat runs or to be kept inside entirely, as they can be hazardous to locally endangered bird species. For instance, various municipalities in Australia have enacted such legislation. In some localities, owners fit their cat with a bell in order to warn prey of its approach. On the other hand, the cat may figure out how and when the bell works and learn to move more carefully to avoid ringing it.
A cat yawning, showing characteristic canine teeth
Cats have highly specialized teeth and a digestive tract suitable to the digestion of meat. The premolar and first molar together compose the carnassial pair on each side of the mouth, which efficiently functions to shear meat like a pair of scissors. While this is present in canines, it is highly developed in felines. The cat’s tongue has sharp spines, or papillae, useful for retaining and ripping flesh from a carcass. These papillae are small backward-facing hooks that contain keratin and assist in their grooming. Domesticated cats eat fairly little vegetable matter. It is quite common, however, for cats to occasionally supplement their carnivorous diets with small amounts of grass or other plant matter to help their digestive tract. Whereas bears and dogs commonly supplement their diet of meat with fruits, berries, roots, and honey when they can get them, cats prefer to mostly feed on meat. All felines, including the big cats, have a genetic anomaly that prevents them from tasting sweetness,which, more than likely, is related to their meat-dominated eating habits, and almost certainly related to their aversion to fruits and berries. However, many domesticated cats are known to like vegetables. The majority of brand-name cat foods are primarily meat based, but often contain large amounts of corn or rice, supplemented with meat byproducts and minerals and vitamins. Cats are also known to munch on grass, leaves, shrubs and houseplants to facilitate regurgitation of whatever may be upsetting their digestion; or perhaps to introduce fibre or trace minerals to the diet.
Cats are obligate carnivores, and cannot live on an unsupplemented vegetarian diet because they cannot synthesize several required nutrients which are absent or rare in plant food. This applies mainly to taurine, vitamin A (cats cannot convert the pro-vitamin A that is abundant in plants to vitamin A proper) and to certain fatty acids. The absence of taurine causes the cat’s retina to slowly degenerate, causing eye problems and (eventually) irreversible blindness, a condition called macular degeneration. Cow’s milk is a poor source of taurine and adult cats are generally lactose intolerant. Lactose-free milk is perfectly safe, but still not a substitute for meat.
Some houseplants are harmful to cats. The leaves of the Easter Lily can cause permanent and life-threatening kidney damage to cats. Philodendron are also poisonous to cats. Cat Fancy has a full list of plants harmful to cats.
Some cats have a fondness for catnip. While they generally do not consume it, they will often roll in it, paw at it, and occasionally chew on it (as catnip is sensed by the cat’s vomeronasal organ). The effect is usually relatively short, lasting for only a few minutes. After two hours or less, susceptible cats gain interest again. Several other species of plants cause this effect, to a lesser degree.
Cats can be fussy eaters, possibly due to the mutation which caused their ancestor to lose the ability to taste sugars. Unlike most mammals, cats can voluntarily starve themselves indefinitely despite being presented with palatable food, even a food which they had previously readily consumed. This can happen when the vomeronasal or Jacobson’s organ becomes accustomed to a specific food, or if the cats are spoiled by their owners, in which case the cat will reject any food that does not fit the pattern it is expecting. It is also known for cats to merely become bored with their given food and decide to stop eating until they are tempted into eating again. Although it is extremely rare for a cat to deliberately starve itself to the point of injury, the sudden loss of weight can cause a fatal condition called hepatic lipidosis, a liver dysfunction which causes pathological loss of appetite and reinforces the starvation, which can lead to death within as little as 48 hours.
Additionally, cats have been known to develop a fondness for prepared human foods, normally preparations which are rich in proteins or fats. However, a diet consisting only of human food (even if high quality meat) is unlikely to contain the balanced nutrition required by the cat. Cats normally are good self-regulators of diet; however, unlimited access to food, or excessive human-food ‘treats’, will often lead to the cat becoming obese, particularly if it is older or more sedentary. This may lead to several health complications, such as diabetes, especially in neutered males. Such health conditions can be prevented through diet and exercise (playing), especially for cats living exclusively indoors.
Cats can also develop pica. Pica is a condition in which animals chew or eat unusual things such as fabric, plastic or wool. In cats, this is mostly harmless as they do not digest most of it, but can be fatal or require surgical removal if a large amount of foreign material is ingested (for example, an entire sock). It tends to occur more often in Siamese, Burmese, and breeds with these in their ancestry.
Domestic cats, especially young kittens, are known for their love of string play. Many cats cannot resist a dangling piece of string, or a piece of rope drawn randomly and enticingly across the floor. This well known love of string is often depicted in cartoons and photographs, which show kittens or cats playing with balls of yarn. It is probably related to hunting instincts, including the common practice of kittens hunting their mother’s and each other’s tails. If string is ingested, however, it can become caught in the cat’s stomach or intestines, causing illness, or in extreme cases, death. Due to possible complications caused by ingesting a string, string play is sometimes replaced with a laser pointer’s dot, which some cats will chase. Some also discourage the use of laser pointers for pet play, however, because of the potential damage to sensitive eyes and/or the possible loss of satisfaction associated with the successful capture of an actual prey object, play or real.
Because of their small size, domestic cats pose almost no danger to humans — the main hazard is the possibility of infection (e.g., cat scratch disease, or, rarely, rabies) from a cat bite or scratch. Cats can also potentially inflict severe scratches or puncture an eye, though this is quite rare. Dogs have been known to be blinded by cats in fights, in which the cat specifically targeted the eyes of the larger animal with some accuracy.
Cats can be destructive to ecosystems in which they are not native and whose species have not had time to adapt to their introduction. In some cases, cats have contributed to or caused extinctions -— for example, see the case of the Stephens Island Wren.
he liver of a cat is less effective at detoxification than those of other animals, including humans and dogs; therefore exposure to many common substances considered safe for households may be dangerous to them . In general, the cat’s environment should be examined for the presence of such toxins and the problem corrected or alleviated as much as possible; in addition, where sudden or prolonged serious illness without obvious cause is observed, the possibility of toxicity must be considered, and the veterinarian informed of any such substances to which the cat may have had access.
For instance, the common painkiller paracetamol or acetominophen, sold under brand names such as Tylenol and Panadol, is extremely toxic to cats; because they naturally lack enzymes needed to digest it, even minute portions of doses safe for humans can be fatal and any suspected ingestion warrants immediate veterinary attention. Even aspirin, which is sometimes used to treat arthritis in cats, is much more toxic to them than to humans and must be administered cautiously. Similarly, application of minoxidil (Rogaine) to the skin of cats, either accidental or by well-meaning owners attempting to counter loss of fur, has sometimes proved fatal .
In addition to such obvious dangers as insecticides and weed killers, other common household substances that should be used with caution in areas where cats may be exposed to them include mothballs and other naphthalene products , as well as phenol based products often used for cleaning and disinfecting near cats’ feeding areas or litter boxes, such as Pine-Sol, Dettol (Lysol), hexachlorophene, etc. which, although they are widely used without problem, have been sometimes seen to be fatal. Antifreeze is particularly appealing to cats, and as little as a teaspoonful can be fatal.
Many human foods are somewhat toxic to cats; theobromine in chocolate can cause theobromine poisoning, for instance, although few cats will eat chocolate. Toxicity in cats ingesting relatively large amounts of onions or garlic has also been reported . Even such seemingly safe items as cat food packaged in pull tab tin cans have been statistically linked to hyperthyroidism; although the connection is far from proved, suspicion has fallen on the use of bisphenol A, another phenol based product as discussed above, to seal such cans .
As is well known, many houseplants are at least somewhat toxic to many species, cats included and the consumption of such plants by cats is to be avoided
Cats are known for their fastidious cleanliness. They groom themselves by licking their fur, employing their hooked pappilae and saliva. Their saliva is a powerful cleaning agent, but it can provoke allergic reactions in humans. Some people who are allergic to cats—typically manifested by hay fever, asthma or a skin rash —quickly acclimate themselves to a particular animal and live comfortably in the same house with it, while retaining an allergy to cats in general. Many cats also enjoy grooming humans or other cats. Sometimes the act of grooming another cat is initiated as an assertion of superior position in the pecking order of a group (dominance grooming). Some cats occasionally regurgitate hair balls of fur that have collected in their stomachs as a result of their grooming. Longhair cats are more prone to this than shorthairs. Hairballs can be prevented with certain cat foods and remedies that ease elimination of the hair and regular grooming of the coat with a comb or stiff brush. Cats expend nearly as much fluid grooming as they do urinating.
Indoor cats are usually provided with a litter box containing litter, typically bentonite, but sometimes other absorbent material such as shredded paper or wood chips, or sometimes sand or similar material. This arrangement serves the same purpose as a toilet for humans. It should be cleaned daily and changed often, depending on the number of cats in a household and the type of litter; if it is not kept clean, a cat may be fastidious enough to find other locations in the house for urination or defecation. This may also happen for other reasons; for instance, if a cat becomes constipated and defecation is uncomfortable, it may associate the discomfort with the litter box and avoid it in favor of another location. A litterbox is recommended for indoor-outdoor cats as well. Daily attention to the litter box also serves as a monitor of the cat’s health. Numerous variations on litter and litter box design exist, including some which automatically sift the litter after each use. Bentonite or clumping litter is a variation which absorbs urine into clumps which can be sifted out along with feces, and thus stays cleaner longer with regular sifting, but has sometimes been reported to cause health problems in some cats.
Litterboxes may pose a risk of toxoplasmosis transmission to susceptible pregnant women and immuno-compromised individuals, although this risk is greatly decreased in indoor-only cats which would not normally be exposed to the disease. Transmission risk may be reduced by daily litterbox cleaning by someone other than the susceptible individual.
Some cats can be toilet trained, eliminating the litterbox and its attendant expense and smell. Training involves two or three weeks of incremental moves, such as moving and elevating the litterbox until it is near the toilet. For a short time, an adapter, such as a bowl or small box, may be used to suspend the litter above the toilet bowl; numerous kits and other aids are marketed to help toilet-train cats. When training is complete, the cat uses the toilet by perching over the bowl. Occasional accidental dunkings, which can traumatize the cat to the point of its avoidance of the toilet, urinating and defecating in undesirable locations around the house, can be avoided by use of a simple insert of one or two crossbars or a widely spaced grid to prevent falling in but allow feces to pass; such safety devices have recently become commercially available. Otherwise, if a cat is not trained to use the toilet, it is wise to keep the lid shut to prevent thirsty or curious cats from falling in.
Cats are naturally driven to periodically hook their front claws into suitable surfaces and pull backwards, in order to clean the claws and remove the worn outer sheath as well as exercise and stretch their muscles. This scratching behavior seems enjoyable to the cat, and even declawed cats will go through elaborate scratching routines with every evidence of great satisfaction, despite the total lack of results. Indoor cats benefit from being provided with a scratching post so that they are less likely to use carpet or furniture which they can easily ruin. Commercial scratching posts typically are covered in carpeting or upholstery, but some authorities advise against this practice, as not making it clear to the cat which surfaces are permissible and which are not; they suggest using a plain wooden surface, or reversing the carpeting on the posts so that the rougher texture of the carpet backing is a more attractive alternative to the cat than the floor covering. Some indoor cats, however, especially those that were taken as kittens from feral colonies, may not understand the concept of a scratching post, and as a result will ignore it.
Close-up of a cat’s claw, with the quick clearly visible
Although scratching can serve cats to keep their claws from growing excessively long, their nails can be trimmed if necessary, with a small nail trimmer designed for humans, a small pair of electrician’s diagonal cutting pliers, or a guillotine type cutter specifically designed for animal nail trimming. Care must always be taken to avoid cutting the quick of the claw, analogous to cutting into the tip of a finger and equally painful and bloody. The position of the quick can be easily seen through the translucent nail of a cat with light colored claws but not in cats with dark colored nails, who therefore require carefully trimming of only small amounts from the nails.
Declawing is a major surgery known as onychectomy, performed under anesthesia, which removes the tip of each digit (from the first knuckle out) of the cat’s forepaws (and rarely the hind paws). The primary reason for declawing cats is to prevent them from damaging furniture; in the United States, some landlords may require that tenants’ cats be declawed. Rarely, vicious cats, cats that frequently fight with other pets, or cats that are too efficient at predation of songbirds etc. are declawed.
Many veterinarians are critical of the procedure, and some refuse to perform it because the absence of claws in a cat:
• Deprives it of its main defense abilities, both fighting as well as escaping by climbing trees;
• Can impair its stretching and exercise habits, leading to muscle atrophy;
• Compromises its ability to grip and balance on thin surfaces such as railings and fence tops, leading to injury from falls;
• Can cause insecurity and a subsequent tendency to bite.
For these reasons, all authorities recommend that declawed cats never be allowed to roam outdoors freely. This surgery is generally not recommended for an adult animal, and is rare outside of North America, being considered an act of animal cruelty in many Western countries. In Finland, Germany, the Netherlands and Switzerland, declawing is forbidden by the laws against cruelty to animals. In many other European countries, it is forbidden under the terms of the European Convention for the Protection of Pet Animals, unless “a veterinarian considers [such] non-curative procedures necessary either for veterinary medical reasons or for the benefit of (the) animal”. In Britain, animal shelters find it difficult to place imported cats that have been declawed and subsequently most are euthanized. In 2003, West Hollywood, California became the first U.S. jurisdiction to outlaw declawing by veterinarians or animal groomers practicing in city limits, but the law was overturned.
While some people suggest cats not be declawed until 5-6 months of age, many veterinarians who practice this surgery are of the opinion that it is advantageous to declaw the cat as soon as it is old enough to sustain surgery (around 2-3 months of age, depending on size), reasoning that younger cats are more adaptable to the amputation, and that distal phalanges in the cat at this age are still flexible cartilage rather than bone, making the operation less severe.
Close-up of a declawed paw.
After a cat has been declawed, it should be allowed to rest, and restrained from jumping (if possible) for a few days. After being declawed, as after any surgery, there may be a period of about a week, sometimes less, when the cat will be uncomfortable being played with or picked up. As with any surgery, there is a slight risk of death, as well as of complications which may leave the cat with an increased risk of infection and/or life-long discomfort in its paws.
An alternative to declawing is the application of blunt, vinyl nail caps that are affixed to the claws with nontoxic glue, requiring periodic replacement when the cat sheds its claw sheaths (about every four to six weeks). However, the cat will still experience difficulties because the capped nails are not as effective as claws.
The wild cat, ancestor of the domestic cat, is believed to have evolved in a desert climate, as evident in the behavior common to both the domestic and wild forms. Wild cats are native to all continents other than Australia and Antarctica, although feral cats have become apex predators in the Australian O
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Bicolor, Tuxedo and Van
This pattern varies between the tuxedo cat which is mostly black with a white chest, and possibly markings on the face and paws/legs, all the way to the Van pattern (so named after the Lake Van area in Turkey, which gave rise to the Turkish Van breed), where the only colored parts of the cat are the tail (usually including the base of the tail proper), and the top of the head (often including the ears). There are several other terms for amounts of white between these two extremes, such as harlequin or jellicle cat. Bicolor cats can have as their primary (non-white) color black, red, any dilution thereof and tortoiseshell (see below for definition).
A mackerel tabby clearly showing the characteristic “M” of the breed.
A classic example of a mackerel tabby.
Striped, with a variety of patterns. The classic “blotched” tabby (or “marbled”) pattern is the most common and consists of butterflies and bullseyes. The “mackerel” or “striped” tabby is a series of vertical stripes down the cat’s side (resembling the fish). This pattern broken into spots is referred to as a “spotted” tabby. Finally, the tabby markings may look like a series of ticks on the fur, thus the “ticked” tabby, which is almost exclusively associated with the Abyssinian breed of cats. The worldwide evolution of the cat means that certain types of tabby are associated with certain countries; for instance, blotched tabbies are quite rare outside NW Europe, where they are the most common type.
This tortoiseshell cat has black-orange-white fur and green eyes.
Tortoiseshell and Calico
This cat is also known as a Calimanco cat or Clouded Tiger cat, and by the nickname “tortie”. In the cat fancy, a tortoiseshell cat is randomly patched over with red (or its dilute form, cream) and black (or its dilute blue) mottled throughout the coat. Additionally, the cat may have white spots in its fur, which make it a “tortoiseshell and white” cat or, if there is a significant amount of white in the fur and the red and black colors form a patchwork rather than a mottled aspect, the cat will be called a “calico”. All calicos are tortoiseshell (as they carry both black and red), but not all tortoiseshells are calicos (which requires a significant amount of white in the fur and patching rather than mottling of the colors). The calico is also sometimes called a “tricolor cat”. The Japanese refer to this pattern as mi-ke (meaning “triple fur”), while the Dutch call these cats lapjeskat (meaning “patches cat”). A true tricolor must consist of three colors: a reddish color, dark or light; white; and one other color, typically a brown, black or blue, as described by American breeder Barbara French, writing for the Cat Fanciers community. Both tortoiseshell and calico cats are typically female because the coat pattern is the result of differential X chromosome inactivation in females (which, as with all normal female mammals, have two X chromosomes). Those male tortoiseshells that are created are usually sterile; conversely, cats where the overall color is ginger (orange) are commonly male (roughly in a 3:1 ratio). In a litter sired by a ginger tom, the females will be tortoiseshell or ginger. See “Tortoiseshell and Tricolour Cats” for an extensive genetic explanation for tricolor cats, and detailing the possible combinations of coloring.
A flame point Siamese mix.
The colorpoint pattern is most commonly associated with Siamese cats, but may also appear in any domestic cat. A colorpoint cat has dark colors on the face, ears, feet, and tail, with a lighter version of the same color on the rest of the body, and possibly some white. The exact name of the colorpoint pattern depends on the actual color, so there are seal points (dark brown), chocolate points (warm lighter brown), blue points (dark gray), lilac points (silvery gray-pink), flame points (orange), and tortie (tortoiseshell mottling) points, among others. This pattern is the result of a temperature sensitive mutation in one of the enzymes in the metabolic pathway from tryptophan to pigment, such as melanin; thus, little or no pigment is produced except in the extremities or “points”, where the skin is slightly cooler. For this reason, colorpoint cats tend to darken with age as bodily temperature drops; also, the fur over a significant injury may sometimes darken or lighten as a result of temperature change.
The tryptophan pathway also produces neurotransmitters, thus mutations in the early parts of that pathway may affect not only pigment, but also neurological development. This results in a higher frequency of cross-eyes among colorpoint cats, as well as the high frequency of deafness in white cats and the high frequency of cross-eyes in white tigers. (This is not related to albinism).
History and mythology
Cats have been kept by humans since at least ancient Egypt, where the mythical cat Bast was goddess of the home, the domestic cat, protector of the fields and home from vermin infestations, and sometimes took on the warlike aspect of a lioness. The first domesticated cats may have saved early Egyptians from many rodent infestations and likewise, Bast developed from the adoration for her feline companions. She was the daughter of the sun god Ra and played significant role in Ancient Egyptian religion. It has been speculated that cats resident in Kenya’s Islands in the Lamu Archipelago may be the last living direct descendants of the cats of ancient Egypt.
Several ancient religions believe that cats are exalted souls, companions or guides for humans, that they are all-knowing but are mute so they cannot influence decisions made by humans. In Japan, the Maneki Neko is a cat that is a symbol of “good fortune”. Muezza was the Prophet Muhammad’s favorite cat.
It is common lore that cats have nine lives. It is a tribute to their perceived durability, their occasional apparent lack of instinct for self-preservation, and their seeming ability to survive falls that would be fatal to other animals.