Free-fed feral cats and house cats tend to consume many small meals in a single day, although the frequency and size of meals varies between individuals. Cats use two hunting strategies, either stalking prey actively, or waiting in ambush until an animal comes close enough to be captured. Although it is not certain, the strategy used may depend on the prey species in the area, with cats waiting in ambush outside burrows, but tending to actively stalk birds.:153
^ Rayner, M. J.; Hauber, M. E.; Imber, M. J.; Stamp, R. K.; Clout, M. N. (2007). "Spatial Heterogeneity of Mesopredator Release within an Oceanic Island System". Proceedings of the National Academy of Sciences of the United States of America. 104 (52): 20862–20865. Bibcode:2007PNAS..10420862R. doi:10.1073/pnas.0707414105. PMC 2409232. PMID 18083843.
The musical returned to the West End in 2014 for a planned 12-week limited run at the London Palladium. Beginning on 6 December, the revival starred Nicole Scherzinger as Grizabella, and featured the original creative team, with direction from Nunn, choreography by Lynne and design by Napier. Lloyd Webber was also involved and rewrote "The Rum Tum Tugger" and "Growltiger's Last Stand" for the revival. The run was later extended through April 2015 and an additional 100,000 tickets were released, with Kerry Ellis replacing Scherzinger as Grizabella. The musical returned once again to the London Palladium for another limited run lasting from 23 October 2015 to 2 January 2016, starring Beverley Knight as Grizabella.
Cats redefined musical theatre in the German-speaking part of the world, turning an industry which then consisted of repertory theatre towards privately-funded big-budget open-ended productions. The success of the Vienna and Hamburg productions sparked a "musical boom" in the region that saw numerous musicals being launched not just in Germany but also in countries like Switzerland. It also led to a "construction boom" in Germany as new theatrical venues were enacted all around the country. Germany has since grown to become the third largest musical market after the US and UK, with Hamburg as its "musical capital".
Many of the ensemble characters were created by the original cast through extensive improvisation sessions held during the rehearsal process. Said Nunn: "[O]n day one of rehearsals what we had was 15 poems set to music and five weeks later we had a show with characters, relationships and stories running from beginning to end." The production faced a last minute mishap when Dench snapped her Achilles tendon during rehearsals for "The Old Gumbie Cat" and had to pull out one week before the first preview. Her understudy Myra Sands replaced her as Jennyanydots, while Elaine Paige agreed to take over the role of Grizabella. Opening night was pushed back to 11 May, but Mackintosh refused to postpone the previews as he wanted to dispel the industry rumours that the production was an impending debacle.
The musical first played in Mexico from April 1991 to November 1992; the Spanish-language production performed over 400 shows and starred María del Sol as Grizabella, Manuel Landeta as Munkustrap, Susana Zabaleta as Jellylorum, Maru Dueñas as Sillabub and Ariel López Padilla as Macavity. A revival premiered at the Teatro San Rafael in May 2013, with an opening night cast that included Filippa Giordano as Grizabella, Landeta, and Maru Dueñas. After a total of 350 performances, the show closed at the Teatro San Rafael in June 2014, and then toured over 36 cities in Mexico until December 2014. Other performers who later joined the production included Lisset, Rocío Banquells, Lila Deneken and Myriam Montemayor Cruz, all of whom played Grizabella. Another Mexican revival was launched at the Coyoacán Centennial Theater in October 2018, with Yuri as Grizabella and Landeta as Old Deuteronomy. The revival marked its 200th performance in May 2019.
Cats are similar in anatomy to the other felid species, with a strong flexible body, quick reflexes, sharp teeth and retractable claws adapted to killing small prey. They are predators who are most active at dawn and dusk (crepuscular). Cats can hear sounds too faint or too high in frequency for human ears, such as those made by mice and other small animals. Compared to humans, they see better in the dark (they see in near total darkness) and have a better sense of smell, but poorer color vision. Cats, despite being solitary hunters, are a social species. Cat communication includes the use of vocalizations including meowing, purring, trilling, hissing, growling and grunting as well as cat-specific body language. Cats also communicate by secreting and perceiving pheromones.