In ancient Egypt, cats were sacred animals, with the goddess Bast often depicted in cat form, sometimes taking on the war-like aspect of a lioness.[265]:220 Killing a cat was absolutely forbidden[4] and the Greek historian Herodotus reports that, whenever a household cat died, the entire family would mourn and shave their eyebrows.[4] Families took their dead cats to the sacred city of Bubastis,[4] where they were embalmed and buried in sacred repositories.[4] The earliest unmistakable evidence of the Greeks having domestic cats comes from two coins from Magna Graecia dating to the mid-fifth century BC showing Iokastos and Phalanthos, the legendary founders of Rhegion and Taras respectively, playing with their pet cats.[266]:57–58[267]
Cats are unusually dependent on a constant supply of the amino acid arginine, and a diet lacking arginine causes marked weight loss and can be rapidly fatal.[115] Arginine is an essential additive in cat food because cats have low levels of the enzymes aminotransferase and pyrroline-5-carboxylate which are responsible for the synthesis of ornithine and citrulline in the small intestine. Citrulline would typically go on to the kidneys to make arginine, but because cats have a deficiency in the enzymes that make it, citrulline is not produced in adequate quantities to make arginine. Arginine is essential in the urea cycle in order to convert the toxic component ammonia into urea that can then be excreted in the urine. Because of its essential role, deficiency in arginine results in a buildup of toxic ammonia and leads to hyperammonemia.[116] The symptoms of hyperammonemia include lethargy, vomiting, ataxia, hyperesthesia and can be serious enough to induce death and coma in a matter of days if a cat is being fed an arginine-free diet. The quick onset of these symptoms is due to the fact that diets devoid in arginine will typically still contain all of the other amino acids, which will continue to be catabolized by the body, producing mass amounts of ammonia that very quickly build up with no way of being excreted.[citation needed]
^ Jump up to: a b Lipinski, Monika J.; Froenicke, Lutz; Baysac, Kathleen C.; Billings, Nicholas C.; Leutenegger, Christian M.; Levy, Alon M.; Longeri, Maria; Niini, Tirri; Ozpinar, Haydar (2008). "The Ascent of Cat Breeds: Genetic Evaluations of Breeds and Worldwide Random-bred Populations". Genomics. 91 (1): 12–21. doi:10.1016/j.ygeno.2007.10.009. PMC 2267438. PMID 18060738.
Cats premiered in the West End at the New London Theatre on 11 May 1981. The musical was produced by Mackintosh and Lloyd Webber's Really Useful Group, with direction by Nunn, choreography by Lynne (who also served as the associate director), set and costume design by Napier, lighting design by David Hersey, sound design by Abe Jacob and music direction by Harry Rabinowitz.[98] It played a total of 8,949 performances before closing on its 21st anniversary, 11 May 2002. The final performance was broadcast live on a large outdoor screen in Covent Garden for fans who could not acquire a ticket.[99] Cats held the record as London's longest-running musical from 1989, when it surpassed Jesus Christ Superstar,[100] until 8 October 2006, when it was surpassed by Les Misérables.
Preformed vitamin A is required in the cat for retinal and reproductive health. Vitamin A is considered to be a fat-soluble vitamin and is seen as essential in a cat's diet. Normally, the conversion of beta-carotenes into vitamin A occurs in the intestine (more specifically the mucosal layer) of species, however cats lack the ability to undergo this process.[121] Both the kidney and liver are contributors to the use of vitamin A in the body of the majority of species while the cats liver does not produce the enzyme Beta-carotene 15,15'-monooxygenase which converts the beta-carotene into retinol (vitamin A).[122] To summarize: cats do not have high levels of this enzyme leading to the cleavage and oxidation of carotenoids not taking place.[120]

Kitten Canon is a classic physics game. Fluffy has found his way into your cannon again, that dang cat just never listens and doesn't care! The only way you can teach it a lesson is by firing that cannon into a field of bombs, spikes, springs, and other awesome obstacles! From the mind of Dan Fleming comes a game that only Dan Fleming could invent: Kitten Canon!! This is a classic launch game with a solid physics engine that allows you to accurately predict where and how fast you can launch Fluffy. Fluffy is a naughty cat so don't worry too much about their well being, it really is Fluffy's own fault for being in the cannon in the first place. Now its your chance to teach Fluffy a lesson in this fun action puzzler!
Dance plays a major role in Cats as the creative team had specifically set out to create "England's first dance musical".[81] Before Cats, the industry-wide belief was that British dancers were inferior to their Broadway counterparts. The risky hiring of a British choreographer, Lynne, for a British dance musical was described by one historian as "a vivid and marvellous gesture of transatlantic defiance".[82] Making Lynne's job more challenging was the fact that the music in Cats is unceasing and the majority of the cast remains onstage throughout nearly the entire show.[82]
Preformed vitamin A is required in the cat for retinal and reproductive health. Vitamin A is considered to be a fat-soluble vitamin and is seen as essential in a cat's diet. Normally, the conversion of beta-carotenes into vitamin A occurs in the intestine (more specifically the mucosal layer) of species, however cats lack the ability to undergo this process.[121] Both the kidney and liver are contributors to the use of vitamin A in the body of the majority of species while the cats liver does not produce the enzyme Beta-carotene 15,15'-monooxygenase which converts the beta-carotene into retinol (vitamin A).[122] To summarize: cats do not have high levels of this enzyme leading to the cleavage and oxidation of carotenoids not taking place.[120]
Shortly after the Sydmonton Festival, Lloyd Webber began setting the unpublished poems he had been given to music, a few of which were later added into the show. He also composed the overture and "The Jellicle Ball", incorporating analog synthesizers into these orchestrations to try to create a unique electronic soundscape.[11] Meanwhile, Mackintosh recruited Nunn, the then artistic director of the Royal Shakespeare Company (RSC), to direct Practical Cats. Nunn was an unusual choice as he was considered "too high-brow" for musical theatre,[12] but Mackintosh felt that a "pedigree" director was needed to ensure Valerie Eliot's approval of the project.[13] After much persuasion, Nunn came on board and was joined by his fellow RSC colleagues, choreographer Gillian Lynne and set and costume designer John Napier.[9][14] Nunn initially envisioned Practical Cats as a chamber piece for five actors and two pianos, which he felt would reflect "Eliot's charming, slightly offbeat, mildly satiric view of late-1930's London".[15] However, he relented to Lloyd Webber's more ambitious vision for the musical.[15] Nunn was also convinced that for the musical to have the wide commercial appeal that the producers desired, it could not remain as a series of isolated numbers but instead had to have a narrative through line.[14] He was therefore tasked with piecing the self-contained poems together into a story.[16] Nunn wrote about the significance "Grizabella the Glamour Cat" had on the construction of the narrative:
Here in eight lines Eliot was describing an intensely recognizable character with powerful human resonances, while introducing the themes of mortality, and the past, which occur repeatedly in the major poems. We decided that if Eliot had thought of being serious, touching, almost tragic in his presentation of a feline character, then we had to be doing a show which could contain that material, and the implications of it. Furthermore, we would have to achieve the sense of progression through themes more than incidents.[17]
The musical first played in Mexico from April 1991 to November 1992;[120] the Spanish-language production performed over 400 shows and starred María del Sol as Grizabella,[130] Manuel Landeta as Munkustrap,[131] Susana Zabaleta as Jellylorum, Maru Dueñas as Sillabub and Ariel López Padilla as Macavity.[132] A revival premiered at the Teatro San Rafael in May 2013, with an opening night cast that included Filippa Giordano as Grizabella, Landeta, and Maru Dueñas.[133] After a total of 350 performances, the show closed at the Teatro San Rafael in June 2014,[134] and then toured over 36 cities in Mexico until December 2014.[135][136] Other performers who later joined the production included Lisset,[137] Rocío Banquells,[138] Lila Deneken and Myriam Montemayor Cruz, all of whom played Grizabella.[139] Another Mexican revival was launched at the Coyoacán Centennial Theater in October 2018, with Yuri as Grizabella and Landeta as Old Deuteronomy.[131][140] The revival marked its 200th performance in May 2019.[141]

Domestic cats use many vocalizations for communication, including purring, trilling, hissing, growling/snarling, grunting, and several different forms of meowing.[7] By contrast, feral cats are generally silent.[140]:208 Their types of body language, including position of ears and tail, relaxation of the whole body, and kneading of the paws, are all indicators of mood. The tail and ears are particularly important social signal mechanisms in cats;[141][142] for example, a raised tail acts as a friendly greeting, and flattened ears indicates hostility. Tail-raising also indicates the cat's position in the group's social hierarchy, with dominant individuals raising their tails less often than subordinate animals.[142] Nose-to-nose touching is also a common greeting and may be followed by social grooming, which is solicited by one of the cats raising and tilting its head.[131]
Paul Dean is a writer. In addition to co-founding the board games site/show Shut Up & Sit Down and co-creating the latest edition of the Paranoia RPG, Paul has also contributed to or been featured in publications and outlets as diverse as The Telegraph, Eurogamer, IGN, How We Get to Next, The New Statesmen, The Guardian, RockPaperShotgun, and BBC Radio. (He’s even got a Cadbury’s Children’s Poetry Collection.) Later this year his scenario “We’ll Temporarily Have Paris” will appear in the Feng Shui 2 adventure anthology Have Fist, Will Travel.
To aid with navigation and sensation, cats have dozens of movable whiskers (vibrissae) over their body, especially their faces. These provide information on the width of gaps and on the location of objects in the dark, both by touching objects directly and by sensing air currents; they also trigger protective blink reflexes to protect the eyes from damage.[66]:47
Domestic kittens are commonly sent to new homes at six to eight weeks of age, but it has been suggested that being with their mother and litter-mates from six to twelve weeks is important for a kitten's social and behavioural development.[16] Usually, breeders and foster/rescue homes will not sell or adopt out a kitten that is younger than twelve weeks. In many jurisdictions, it is illegal to give away kittens younger than eight weeks of age.[18] Kittens generally reach sexual maturity at around seven months old. A cat reaches full "adulthood" around one year of age.[19]
Since kitten diets are very high in calories, ingredients must be implemented to ensure adequate digestion and utilization of these calories. Choline chloride is an ingredient that maintains fat metabolism.[42] Biotin and niacin are also active in the metabolism of fats, carbs and protein.[42] Riboflavin is also necessary for the digestion of fats and carbohydrates.[42] These are the main metabolism aids incorporated into kitten diets to ensure nutrient usage is maximized.
Once your vet has cleared your kitten as free of disease and parasites, it’s safe to let your new kitten explore its new surroundings and other pet roommates. Handling and playing with your kitten at least once a day will help him form a strong emotional bond with you. If you have children, monitor their introduction to the new kitten to make sure it’s a positive experience for both the kitten and child.
Domestic cats select food based on its temperature, smell and texture; they dislike chilled foods and respond most strongly to moist foods rich in amino acids, which are similar to meat.[113][133] Cats may reject novel flavors (a response termed neophobia) and learn quickly to avoid foods that have tasted unpleasant in the past.[133] They may also avoid sugary foods and milk. Most adult cats are lactose intolerant; the sugars in milk are not easily digested and may cause soft stools or diarrhea.[133][166] They can also develop odd eating habits. Some cats like to eat or chew on other things, most commonly wool, but also plastic, cables, paper, string, aluminum foil, or even coal. This condition, pica, can threaten their health, depending on the amount and toxicity of the items eaten.[167][168] See also Animal psychopathology § Pica.
According to a myth in many cultures, cats have multiple lives. In many countries, they are believed to have nine lives, but in Italy, Germany, Greece, Brazil and some Spanish-speaking regions, they are said to have seven lives,[279][280] while in Turkish and Arabic traditions, the number of lives is six.[281] The myth is attributed to the natural suppleness and swiftness cats exhibit to escape life-threatening situations. Also lending credence to this myth is the fact that falling cats often land on their feet, using an instinctive righting reflex to twist their bodies around. Nonetheless, cats can still be injured or killed by a high fall.[282]

Cats is a sung-through musical composed by Andrew Lloyd Webber, based on the 1939 poetry book Old Possum's Book of Practical Cats by T. S. Eliot. It tells the story of a tribe of cats called the Jellicles and the night they make the "Jellicle choice", deciding which cat will ascend to the Heaviside Layer and come back to a new life. The musical includes the well-known song "Memory" as sung by Grizabella.
Cats is a sung-through musical composed by Andrew Lloyd Webber, based on the 1939 poetry book Old Possum's Book of Practical Cats by T. S. Eliot. It tells the story of a tribe of cats called the Jellicles and the night they make the "Jellicle choice", deciding which cat will ascend to the Heaviside Layer and come back to a new life. The musical includes the well-known song "Memory" as sung by Grizabella.
After the fight, Rum Tum Tugger calls upon the magician Mr. Mistoffelees for help ("Magical Mr. Mistoffelees"). Known as the "original conjuring cat", Mr. Mistoffelees can perform feats of magic that no other cat can do. He displays his magical powers in a dance solo and uses them to restore the lights and bring back Old Deuteronomy. Now, the Jellicle Choice can be made.

Free-fed feral cats and house cats tend to consume many small meals in a single day, although the frequency and size of meals varies between individuals.[133] Cats use two hunting strategies, either stalking prey actively, or waiting in ambush until an animal comes close enough to be captured.[160] Although it is not certain, the strategy used may depend on the prey species in the area, with cats waiting in ambush outside burrows, but tending to actively stalk birds.[161]:153
Like almost all members of the Felidae, cats have protractable and retractable claws.[71] In their normal, relaxed position, the claws are sheathed with the skin and fur around the paw's 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 fore feet are typically sharper than those on the hind feet.[72] Cats can voluntarily extend their claws on one or more paws. They may extend their claws in hunting or self-defense, climbing, kneading, or for extra traction on soft surfaces. Most cats have five claws on their front paws, and four on their rear paws.[73] The fifth front claw (the dewclaw) is proximal to the other claws. More proximally 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 antiskidding device used while jumping. Some breeds of cats are prone to polydactyly (extra toes and claws).[73] These are particularly common along the northeast coast of North America.[74]
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