Most of the lyrics in Cats were taken from Old Possum's Book of Practical Cats with very minor alterations. Supplementary verses from unpublished poems by Eliot were adapted for "Grizabella: The Glamour Cat" and "Journey to the Heaviside Layer", while the song "The Moments of Happiness" was taken from a passage in Eliot's The Dry Salvages. Cats director Trevor Nunn and lyricist Richard Stilgoe provided the remaining lyrics, namely for the opening number "Jellicle Songs for Jellicle Cats" and the most famous song from the musical "Memory". The former was written by Nunn and Stilgoe and was modelled after an unpublished poem by Eliot titled "Pollicle Dogs and Jellicle Cats", while the latter was written by Nunn based on another Eliot poem titled "Rhapsody on a Windy Night".[1]
The first contender Munkustrap introduces is Jennyanydots ("The Old Gumbie Cat"), a large tabby cat who lazes around all day, but come nighttime, she becomes active, teaching mice and cockroaches various activities to curb their naturally destructive habits. Just as Jennyanydots finishes her song, the music changes suddenly and Rum Tum Tugger makes his extravagant entrance in front of the tribe ("The Rum Tum Tugger"). He is very fickle and unappeasable, "for he will do as he do do, and there's no doing anything about it".

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]
Cats started the megamusical phenomenon, establishing Broadway as a global industry and directing its focus to big-budget blockbusters, as well as family- and tourist-friendly shows. Its profound but polarizing influence also reshaped the aesthetic, technology, and marketing of the medium. The musical was adapted into a direct-to-video film in 1998, with a feature film adaptation by Tom Hooper set to follow in 2019.

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]

Vitamin A is required in kitten diets because cats cannot convert carotenes to retinol in the intestinal mucosa because they lack the enzyme so this vitamin must be supplement in the diet.[24][42] Vitamin E is another required vitamin in kitten diets seeing as deficiency leads to steatitis, causing the depot fat to become firm and yellow-orange in colour, which is painful and leads to death.[42] Also, vitamin D is an essential vitamin because cats cannot convert it from precursors in the skin.[24]

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]
In July 2014, Australia's Harvest Rain Theatre Company staged the biggest production of Cats in the Southern Hemisphere with over 700 performers. Produced by Tim O'Connor, the production was performed at the Brisbane Convention & Exhibition Centre. Callum Mansfield directed and choreographed it, and its cast included Marina Prior as Grizabella and Steven Tandy as Bustopher Jones and Gus.[239][240] From October 2015 to May 2016, a revival toured Australia with stops in Sydney, Hobart, Melbourne, Brisbane, Adelaide, and Perth.[241][242] The revival featured singer-songwriter Delta Goodrem as Grizabella,[243] before Delia Hannah took over the role during the Adelaide and Perth seasons.[235][244]

Domestic cats, especially young kittens, are known for their love of play. This behavior mimics hunting and is important in helping kittens learn to stalk, capture, and kill prey.[172] Cats also engage in play fighting, with each other and with humans. This behavior may be a way for cats to practice the skills needed for real combat, and might also reduce any fear they associate with launching attacks on other animals.[173]
By 2012, the royalty payments from Cats to the Eliot estate had totaled an estimated $100 million.[294] Valerie Eliot used a portion of this money to establish the literary charity Old Possum's Practical Trust, and to set up the T. S. Eliot Prize which has since become "the most coveted award in poetry".[337][338] Cats also turned things around for the independent British publishing house Faber and Faber. As the publisher of Old Possum's Book of Practical Cats, royalties of up to £1 million annually[316] kept the then-struggling Faber afloat during the 1980s.[339] Moreover, the musical led to a surge in the sales of Eliot's book.[1] The success of Cats led Faber to turn another of their literary properties, Ted Hughes' The Iron Man, into a 1989 musical of the same name.[340]
Though it’s not something you have any control over, your kitten’s age is more than just a number. In fact, it’s crucial that you learn it. Kittens have very specific developmental needs for the first 10 weeks of their lives in terms of nourishment, warmth, socialization, and excretion. For this reason, most breeders and shelters typically wait until their kittens are of age before they’re put up for adoption. If you, by chance, find yourself in a situation where you need to care for an orphaned kitten under 10 weeks old, consult your vet for special instructions.
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.
Domestic cats are generally smaller than wildcats in both skull and limb measurements.[58] Adult domestic cats typically weigh between 4 and 5 kg (9 and 10 lb),[48] although many breeds have a wide range of sizes, with male American Shorthairs ranging from 3 to 7 kg (7 to 20 lb).[59] Some cat breeds, such as the Maine Coon, occasionally exceed 11 kg (24 lb). Very small cats, less than 2 kg (4 lb), have been reported.[60] The world record for the largest cat is 21 kg (50 lb).[61][self-published source] The smallest adult cat ever officially recorded weighed around 1 kg (2 lb).[61] Feral cats tend to be lighter, as they have more limited access to food than house cats. The average feral adult male weighs 4 kg (9 lb), and the average adult female 3 kg (7 lb).[62] Cats average about 23–25 cm (9–10 in) in height and 46 cm (18 in) in head/body length (males being larger than females), with tails averaging 30 cm (12 in) in length.[63]