November 1985 saw the premiere of a Norwegian-language production at Det Norske Teatret in Oslo. It closed in January 1987 and included performers such as Øivind Blunck, Brit Elisabeth Haagensli and Øystein Wiik.[118][193] Jorma Uotinen directed and choreographed a Finnish production at the Helsinki City Theatre that ran for over two years from September 1986 to December 1988, and featured Monica Aspelund as Grizabella, Heikki Kinnunen as Gus, and Kristiina Elstelä as Jennyanydots/Griddlebone.[194] A Swedish version of the musical opened in 1987 at the Chinateatern in Stockholm. The production was seen by 326,000 audiences before it transferred to the Scandinavium in Gothenburg two years later.[195]
The Dutch live entertainment company Stage Entertainment has been responsible for several European productions of Cats. The company produced the musical at the Coliseum Theatre in Madrid from December 2003 to January 2005, with a cast that included Víctor Ullate as Mistoffelees.[210][211] They then staged a Russian-language production at the Moscow Palace of Youth from 2005 to 2006, with a cast that included Ivan Ozhogin as Munkustrap.[212][213] A Dutch production under the same company toured the Netherlands and Belgium from 2006 to 2007,[205][214] featuring several performers in the role of Grizabella including Pia Douwes and Anita Meyer.[215][216] A Paris revival by Stage Entertainment ran at the Théâtre Mogador from October 2015 to July 2016. This production was based on the 2014 London revival and also featured a new song written especially for the French show by Lloyd Webber.[217][218]

The musical's fantasy setting and disregard for verisimilitude allowed for groundbreaking experimentations in lighting and audio technology. The original London and Broadway productions featured David Hersey's pioneering use of automated lighting to produce kaleidoscopic landscapes and complicated optical effects. Hersey also used light in an "architectural manner", with fast-changing configurations to spotlight different performers in rapid succession. This dynamic shifting of the audience's perspective created an effect similar to that of fast cutting in film editing.[16] The original London production of Cats was also the first known instance in which an entire cast was individually outfitted with radio microphones.[327] The departure from shared ambient microphones meant that the show did not have to depend on the acoustics and architectural design of the theatrical venue, and enabled the sound designer to achieve cinematic levels of sound amplification and studio-quality audio in live theatre.[328] This practice transformed sound design and has since become the norm in live theatre.[327]


The musical has also been translated and staged nationally in Asia. From September 2008 to January 2009, a Korean-language production performed at the Charlotte Theatre in Seoul, with Shin Youngsook and Ock Joo-hyun alternating as Grizabella, Kim Jin-woo and Daesung alternating as Rum Tum Tugger, and Kim Bo-kyung as Rumpleteazer.[268] This production was revived and toured South Korea from 2011 to 2012, with Insooni and Park Hae-mi taking turns to portray Grizabella.[269] The first Mandarin-language production toured various cities in China in 2012.[270]
November 1985 saw the premiere of a Norwegian-language production at Det Norske Teatret in Oslo. It closed in January 1987 and included performers such as Øivind Blunck, Brit Elisabeth Haagensli and Øystein Wiik.[118][193] Jorma Uotinen directed and choreographed a Finnish production at the Helsinki City Theatre that ran for over two years from September 1986 to December 1988, and featured Monica Aspelund as Grizabella, Heikki Kinnunen as Gus, and Kristiina Elstelä as Jennyanydots/Griddlebone.[194] A Swedish version of the musical opened in 1987 at the Chinateatern in Stockholm. The production was seen by 326,000 audiences before it transferred to the Scandinavium in Gothenburg two years later.[195]
^ Jump up to: a b Oliveira, R.; Godinho, R.; Randi, E.; Alves, P. C. (2008). "Hybridization Versus Conservation: Are Domestic Cats Threatening the Genetic Integrity of Wildcats (Felis silvestris silvestris) in Iberian Peninsula?". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 363 (1505): 2953–2961. doi:10.1098/rstb.2008.0052. PMC 2606743. PMID 18522917.

Cats have excellent hearing and can detect an extremely broad range of frequencies. They can hear higher-pitched sounds than either dogs or humans, detecting frequencies from 55 Hz to 79,000 Hz, a range of 10.5 octaves, while humans and dogs both have ranges of about 9 octaves.[80][81] Cats can hear ultrasound, which is important in hunting[82] because many species of rodents make ultrasonic calls.[83] However, they do not communicate using ultrasound like rodents do. Cats' hearing is also sensitive and among the best of any mammal,[80] being most acute in the range of 500 Hz to 32 kHz.[84] This sensitivity is further enhanced by the cat's large movable outer ears (their pinnae), which both amplify sounds and help detect the direction of a noise.[82]
Despite mixed reviews when Cats opened in New York in 1982, critics agreed that it was innovative and visually spectacular in ways that Broadway had never seen before.[304] The musical became a cultural phenomenon and has had a profound influence on the medium.[312] Cats established musical theatre as a global commodity,[313][314] marking the beginning of a new era in the industry that is characterised by huge global stakes for potentially even huger global profits.[313] It led the shift in the Broadway market towards big-budget blockbusters and shows that appeal to families and tourists,[88][315] which in turn left smaller productions struggling to compete.[314] Cats also ushered in a "golden age of British musicals" which saw West End exports dominate the industry for nearly two decades.[316][317] Musical theatre historian Vagelis Siropoulos asserted that its "seminal Broadway opening" was "comparable only to Rodgers and Hammerstein's Oklahoma! thirty nine years ago."[313]
Lloyd Webber began composing the songs in late 1977 as a songwriting exercise, partly because Eliot's book had been a childhood favourite and partly to see if he could write music to predetermined lyrics. The compositions were performed privately for friends but Lloyd Webber had no further intentions for them at the time. After his song cycle Tell Me on a Sunday was televised by the BBC in early 1980, Lloyd Webber began to consider using his musicalizations of Eliot's poems in the same vein for a televised concert anthology.[8] He approached producer Cameron Mackintosh to discuss possible avenues for the songs.[9]

Cats are naturally carnivores and require high amounts of protein in the diet. Kittens are undergoing growth and require high amounts of protein to provide essential amino acids that enable the growth of tissues and muscles.[30] It is recommended that kittens consume a diet containing approximately 30% protein on a dry matter basis for proper growth.[35]
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.

Within the first 2 days after birth, kittens acquire passive immunity from their mother’s milk.[30] Milk within the first few days of parturition is called colostrum, and contains high concentrations of immunoglobulins.[30] These include immunoglobulin A and immunoglobulin G which cross the intestinal barrier of the neonate.[29] The immunoglobulins and growth factors found in the colostrum begin to establish and strengthen the weak immune system of the offspring.[31] Kittens are able to chew solid food around 5–6 weeks after birth, and it is recommended that 30% of their diet should consist of solid food at this time.[32] The kitten remains on the mother’s milk until around eight weeks of age when weaning is complete and a diet of solid food is the primary food source.[23]
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]

A film adaptation directed by Tom Hooper for Universal Pictures and Working Title Films is scheduled to premiere on 20 December 2019. The film will star Jennifer Hudson as Grizabella, Taylor Swift as Bombalurina, James Corden as Bustopher Jones, Judi Dench as Old Deuteronomy, Jason Derulo as Rum Tum Tugger, Idris Elba as Macavity, Ian McKellen as Gus, Rebel Wilson as Jennyanydots and Francesca Hayward as Victoria.[292]
The Dutch live entertainment company Stage Entertainment has been responsible for several European productions of Cats. The company produced the musical at the Coliseum Theatre in Madrid from December 2003 to January 2005, with a cast that included Víctor Ullate as Mistoffelees.[210][211] They then staged a Russian-language production at the Moscow Palace of Youth from 2005 to 2006, with a cast that included Ivan Ozhogin as Munkustrap.[212][213] A Dutch production under the same company toured the Netherlands and Belgium from 2006 to 2007,[205][214] featuring several performers in the role of Grizabella including Pia Douwes and Anita Meyer.[215][216] A Paris revival by Stage Entertainment ran at the Théâtre Mogador from October 2015 to July 2016. This production was based on the 2014 London revival and also featured a new song written especially for the French show by Lloyd Webber.[217][218]
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]
The original concept of a set of contrasting numbers, without a dramatic narrative, meant that each song needed to establish some sort of musical characterization independent of the others and develop a quick rapport with the audience. Such a rapid familiarity and identification of purpose can be achieved through pastiche. But it was only a musical starting point, for the songs in Cats move beyond the straightforward "Elvis" pastiche of Joseph and the Amazing Technicolor Dreamcoat; they are less pointed, more the free workings within a range of chosen styles than direct copies of a specific performer or number. The audience responds to the musical differences, given an initial security provided by the familiarity of recognizable, underlying stylistic generalities.[75]
The cat skull is unusual among mammals in having very large eye sockets and a powerful specialized jaw.[66]:35 Within the jaw, cats have teeth adapted for killing prey and tearing meat. When it overpowers its prey, a cat delivers a lethal neck bite with its two long canine teeth, inserting them between two of the prey's vertebrae and severing its spinal cord, causing irreversible paralysis and death.[67] Compared to other felines, domestic cats have narrowly spaced canine teeth relative to the size of their jaw, which is an adaptation to their preferred prey of small rodents, which have small vertebrae.[67] The premolar and first molar together compose the carnassial pair on each side of the mouth, which efficiently shears meat into small pieces, like a pair of scissors. These are vital in feeding, since cats' small molars cannot chew food effectively, and cats are largely incapable of mastication.[66]:37 Although cats tend to have better teeth than most humans, with decay generally less likely because of a thicker protective layer of enamel, a less damaging saliva, less retention of food particles between teeth, and a diet mostly devoid of sugar, they are nonetheless subject to occasional tooth loss and infection.[68]
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