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Lalit Saini

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Cats are a cosmopolitan species and are found across much of the world.[38] Geneticist Stephen James O'Brien, of the National Cancer Institute in Frederick, Maryland, remarked on how successful cats have been in evolutionary terms: "Cats are one of evolution's most charismatic creatures. They can live on the highest mountains and in the hottest deserts."[178] They are extremely adaptable and are now present on all continents except Antarctica, and on 118 of the 131 main groups of islands—even on sub-Antarctic islands such as the Kerguelen Islands.[179][180]
Feral cats can live in forests, grasslands, tundra, coastal areas, agricultural land, scrublands, urban areas, and wetlands.[181] Their habitats even include small oceanic islands with no human inhabitants.[182] Further, the close relatives of domestic cats, the African wildcat (Felis silvestris lybica) and the Arabian sand cat (Felis margarita) both inhabit desert environments,[4] and domestic cats still show similar adaptations and behaviors.[31] The cat's ability to thrive in almost any terrestrial habitat has led to its designation as one of the world's worst invasive species.[183]
As domestic cats are little altered from wildcats, they can readily interbreed. This hybridization poses a danger to the genetic distinctiveness of some wildcat populations, particularly in Scotland and Hungary and possibly also the Iberian Peninsula.[40]
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