In the original London production, Mungojerrie and Rumpleteazer were characters in their own right and sang their eponymous song themselves as a singsong-style duet. When the show transferred to Broadway, the song was instead sung in the third-person, with Mungojerrie and Rumpleteazer as puppets being magically controlled by Mr. Mistoffelees. Their number was also rewritten to be faster and more upbeat, alternating between vaudeville-style verses and a "manic patter" section. Eventually, the Broadway version of the song was rewritten to allow Mungojerrie and Rumpleteazer to once again sing their own song as full characters.[388]

As well as being kept as pets, cats are also used in the international fur[238] and leather industries for making coats, hats, blankets, and stuffed toys;[239] and shoes, gloves, and musical instruments respectively[240] (about 24 cats are needed to make a cat-fur coat).[241] This use has been outlawed in the United States, Australia, and the European Union.[242] Cat pelts have been used for superstitious purposes as part of the practise of witchcraft,[243] and are still made into blankets in Switzerland as folk remedies believed to help rheumatism.[244] In the Western intellectual tradition, the idea of cats as everyday objects have served to illustrate problems of quantum mechanics in the Schrödinger's cat thought experiment.

After Hamburg, the German production transferred to Stuttgart where it played from 2001 to 2002.[182][183] Stage Entertainment took over the production mid-2002 and moved the show to Berlin (2002–2004)[184][185] and later Düsseldorf (2004–2005),[186] before touring other cities until 2006.[187][188] Mehr-Entertainment launched a separate tour of Cats that ran from December 2010 to June 2013, performing in a travelling purpose-built tent theatre.[180] Besides Germany, this company also made stops in cities in Luxembourg, Switzerland and Austria.[189]
Cats have seven cervical vertebrae (as do most mammals); 13 thoracic vertebrae (humans have 12); seven lumbar vertebrae (humans have five); three sacral vertebrae (as do most mammals, but humans have five); and a variable number of caudal vertebrae in the tail (humans have only vestigial caudal vertebrae, fused into an internal coccyx).[64]:11 The extra lumbar and thoracic vertebrae account for the cat's spinal mobility and flexibility. Attached to the spine are 13 ribs, the shoulder, and the pelvis.[64] :16 Unlike human arms, cat forelimbs are attached to the shoulder by free-floating clavicle bones which allow them to pass their body through any space into which they can fit their head.[65]
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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