On islands, birds can contribute as much as 60% of a cat's diet. In nearly all cases, however, the cat cannot be identified as the sole cause for reducing the numbers of island birds, and in some instances, eradication of cats has caused a 'mesopredator release' effect; where the suppression of top carnivores creates an abundance of smaller predators that cause a severe decline in their shared prey. Domestic cats are, however, known to be a contributing factor to the decline of many species, a factor that has ultimately led, in some cases, to extinction. The South Island piopio, Chatham rail, and the New Zealand merganser are a few from a long list, with the most extreme case being the flightless Lyall's wren, which was driven to extinction only a few years after its discovery.
Felines are natural carnivores and do not intentionally consume large quantities of carbohydrates. The domestic cat's liver has adapted to the lack of carbohydrates in the diet by using amino acids to produce glucose to fuel the brain and other tissues. Studies have shown that carbohydrate digestion in young kittens is much less effective than that of a mature feline with a developed gastrointestinal tract. Highly digestible carbohydrates can be found in commercial kitten food as a source of additional energy as well as a source of fiber to stimulate the immature gut tissue. Soluble fibre such as beet pulp is a common ingredient used as a fibrous stool hardener and has been proven to strengthen intestinal muscles and to thicken the gut mucosal layer to prevent diarrhea.
Clio Yun-su Davis is a game designer and writer who creates larps, tabletop roleplaying games, interactive fiction games, and card games. Their freeform game The Long Drive Back from Busan won the Golden Cobra Challenge award for Best Game That Incorporates Meaningful, Non-Romantic Relationships in 2017, and their game about the future of ancestor worship, The Truth About Eternity, was presented at Fastaval 2019 in Denmark. http://www.cysdavis.com
Kittens develop very quickly from about two weeks of age until their seventh week. Their coordination and strength improves. They play-fight with their litter-mates and begin to explore the world outside the nest or den. They learn to wash themselves and others as well as play hunting and stalking games, showing their inborn ability as predators. These innate skills are developed by the kittens' mother or other adult cats, who bring live prey to the nest. Later, the adult cats demonstrate hunting techniques for the kittens to emulate. As they reach three to four weeks old, the kittens are gradually weaned and begin to eat solid food, with weaning usually complete by six to eight weeks. Kittens generally begin to lose their baby teeth around three months of age, and have a complete set of adult teeth by nine months. Kittens live primarily on solid food after weaning, but usually continue to suckle from time to time until separated from their mothers. Some mother cats will scatter their kittens as early as three months of age, while others continue to look after them until they approach sexual maturity.
The cat skull is unusual among mammals in having very large eye sockets and a powerful specialized jaw.: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. 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. 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.: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.
The lack of readily available glucose from the limited carbohydrates in the diet has resulted to the adaptation of the liver to produce glucose from the breakdown components of protein—amino acids. The enzymes that breakdown amino acids are constantly active in cats and thus, cats need a constant source of protein in their diet. Kittens, require an increased amount of protein to supply readily available amino acids for daily maintenance and for building new body components seeing as they are constantly growing. There are many required amino acids for kittens. Histidine is required at no greater than 30% in kitten diets since consuming histidine-free diets causes weight loss.Tryptophan is required at 0.15% seeing as it maximized performance at this level. Kittens also need the following amino acids supplemented in their diet: arginine to avoid an excess of ammonia in the blood otherwise known as hyperammonemia, isoleucine, leucine, valine, lysine, methionine as a sulfur containing amino acid, asparagine for maximal growth in the early post-weaning kitten, threonine and taurine to prevent from central retinal degeneration.
^ Jump up to: a b Cameron-Beaumont, Charlotte; Lowe, Sarah E.; Bradshaw, John W. S. (2002). "Evidence Suggesting Pre-adaptation to Domestication Throughout the Small Felidae" (PDF). Biological Journal of the Linnean Society. 75 (3): 361–366. doi:10.1046/j.1095-8312.2002.00028.x. Archived from the original (PDF) on 9 June 2011. Retrieved 29 September 2009.
Brigette Indelicato is a full-time graphic designer, art director, and creative consultant specializing in board game graphic design and logo design. Credits include War Chest, Star Trek: Galactic Enterprises, Dungeon Hustle, and Kibble Scuffle. She lives in Philadelphia with her husband and two orange cats, Dax and Odo, named after her favorite Star Trek characters. You can find her work at www.brigetteidesign.com or say hello on twitter at @brigetteidesign.
About 250 heritable genetic disorders have been identified in cats, many similar to human inborn errors. The high level of similarity among the metabolism of mammals allows many of these feline diseases to be diagnosed using genetic tests that were originally developed for use in humans, as well as the use of cats as animal models in the study of the human diseases.
A few attempts to build a cat census have been made over the years, both through associations or national and international organizations (such as the Canadian Federation of Humane Societies's one) and over the Internet, but such a task does not seem simple to achieve. General estimates for the global population of domestic cats range widely from anywhere between 200 million to 600 million.
There are also several powerhouses who worked behind the scenes of the film. Academy Award-winning director Tom Hopper directed and wrote the screenplay, which is of course based on the stage production — which, in turn, was based on poet T. S. Eliot's "Old Possum's Book of Practical Cats." Hopper also directed best-picture winner "The King's Speech" and the musical-turned-movie "Les Misérables."
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. This production was revived and toured South Korea from 2011 to 2012, with Insooni and Park Hae-mi taking turns to portray Grizabella. The first Mandarin-language production toured various cities in China in 2012.
^ Jump up to: a b Nutter, F. B.; Levine, J. F.; Stoskopf, M. K. (2004). "Reproductive capacity of free-roaming domestic cats and kitten survival rate" (PDF). Journal of the American Veterinary Medical Association. 225 (9): 1399−1402. CiteSeerX 10.1.1.204.1281. doi:10.2460/javma.2004.225.1399. Archived (PDF) from the original on 21 January 2019. Retrieved 20 January 2019.
Cats debuted on Broadway on 7 October 1982 at the Winter Garden Theatre with a record-breaking $6.2 million in ticket pre-sales. Most of the original creative team remained, with Martin Levan replacing Jacob as the sound designer and Stanley Lebowsky replacing Rabinowitz as music director. The musical was co-produced by the original London production team, along with David Geffen and The Shubert Organization. It was the most expensive Broadway show ever mounted at the time with a production cost of $5.5 million, though it recouped its investment in less than 10 months. On 19 June 1997, Cats overtook A Chorus Line to become the longest-running show in Broadway history with 6,138 performances. At the time, the musical was found to have had an economic impact of $3.12 billion on New York City and had generated the most theatrical jobs of any single entity in Broadway history. A June closing date was announced in early 2000 but was subsequently pushed back after a resulting surge in ticket sales. The show closed on 10 September 2000 after a total of 13 previews and 7,485 performances. One actress, Marlene Danielle, performed in the Broadway production for its entire 18-year run. Its Broadway-run record was surpassed on 9 January 2006 by The Phantom of the Opera, and Cats remains Broadway's fourth-longest-running show of all time. Overall, the original Broadway production grossed approximately $388 million in ticket sales.
Cats, like dogs, are digitigrades. They walk directly on their toes, with 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 fore paw, minimizing noise and visible tracks. This also provides sure footing for their hind paws when they navigate rough terrain. Unlike most mammals, when cats walk, they use a "pacing" gait; that is, they move the two legs on one side of the body before the legs on the other side. This trait is shared with camels and giraffes. As a walk speeds up into a trot, a cat's gait changes to be a "diagonal" gait, similar to that of most other mammals (and many other land animals, such as lizards): the diagonally opposite hind and fore legs move simultaneously.