The domestic cat's ability to thrive in almost any terrestrial habitat has led to its designation as one of the world's most invasive species.[203] As it is little altered from the wildcat, it can readily interbreed with the wildcat. This hybridization poses a danger to the genetic distinctiveness of some wildcat populations, particularly in Scotland and Hungary and possibly also the Iberian Peninsula.[56]
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.[69] 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.[70]

You’ve never played a roleplaying game, either? Purr-fect! Magical Kitties includes a lot of tools — including a solo play module so that you can start playing within moments of opening the box! — and guidance for both first-time roleplayers and first-time GMs. Whether you’ve played board games with roleplaying elements like Mice & Mystics or T.I.M.E. Stories, watched actual play videos, or just think roleplaying games sound like a lot of fun and you want to give them a try, Magical Kitties can be your first step into a larger world.
^ Zorro, the last cat of a colony at the Merrimack River in Newburyport, Massachusetts, died in 2009 at age 16. "Trap-Neuter-Return Effectively Stabilizes and Reduces Feral Cat Populations: Trap-Neuter-Return Humanely Stabilized and Reduced in Size the Merrimack River Colony" Archived 5 March 2016 at the Wayback Machine, Alley Cat Allies, accessed 18 August 2014; an earlier article in the LA Times was written when Zorro was the last remaining living cat: "Advocates report success with trap, neuter, return approach to stray cats" Archived 6 March 2016 at the Wayback Machine, Los Angeles Times, 29 September 2009.
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.
Vitamin D3 is a dietary requirement for cats as they lack the ability to synthesize vitamin D3 from sunlight.[123] Cats obtain high levels of the enzyme 7-dehydrocholestrol delta 7 reductase which causes immediate conversion of vitamin D3 from sunlight to 7-dehydrocholesterol.[124] This fat soluble vitamin is required in cats for bone formation through the promotion of calcium retention, along with nerve and muscle control through absorption of calcium and phosphorus.[124]

Cats can be infected or infested with viruses, bacteria, fungus, protozoans, arthropods or worms that can transmit diseases to humans.[262] In some cases, the cat exhibits no symptoms of the disease,[263] However, the same disease can then become evident in a human. The likelihood that a person will become diseased depends on the age and immune status of the person. Humans who have cats living in their home or in close association are more likely to become infected, however, those who do not keep cats as pets might also acquire infections from cat feces and parasites exiting the cat's body.[262][264] Some of the infections of most concern include salmonella, cat-scratch disease and toxoplasmosis.[263]


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.
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

Then, as Rum Tum Tugger's song fades, a shabby old grey cat stumbles out wanting to be reconciled; it is Grizabella. All the cats back away from her in fear and disgust and explain her unfortunate state ("Grizabella: The Glamour Cat"). Grizabella leaves and the music changes to a cheerful upbeat number as Bustopher Jones, a fat cat in "a coat of fastidious black", is brought to the stage ("Bustopher Jones: The Cat About Town"). Bustopher Jones is among the elite of the cats, and visits prestigious gentlemen's clubs. Suddenly, a loud crash startles the tribe and the cats run offstage in fright. Hushed giggling sounds signal the entrance of Mungojerrie and Rumpleteazer, a pair of near-identical cats. They are mischievous petty burglars who enjoy causing trouble around their human neighbourhood ("Mungojerrie and Rumpleteazer"). After they finish, they are caught off-guard and confronted by the rest of the cats.


Before Old Deuteronomy can announce his decision, Grizabella returns to the junkyard and he allows her to address the gathering. Her faded appearance and lonely disposition have little effect on her song ("Memory"). With acceptance and encouragement from Jemima and Victoria, her appeal succeeds and she is chosen to be the one to go to the Heaviside Layer and be reborn into a new Jellicle life ("Journey to the Heaviside Layer"). A tyre rises from the piles of junk, carrying Grizabella and Old Deuteronomy partway toward the sky; Grizabella then completes the journey on her own.[i] Finally, Old Deuteronomy gives his closing speech to the audience ("The Ad-dressing of Cats") and the show comes to a close.

It was long thought that cat domestication was initiated in Egypt, because cats in ancient Egypt were venerated from around 3100 BC.[11][12] However, the earliest indication for the taming of an African wildcat (F. lybica) was found in Cyprus, where a cat skeleton was excavated close by a human Neolithic grave dating to around 7500 BC.[13] African wildcats were probably first domesticated in the Near East.[14] The leopard cat (Prionailurus bengalensis) was tamed independently in China around 5500 BC, though this line of partially domesticated cats leaves no trace in the domestic cat populations of today.[15][16]
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