 Feral cats can live in forests , grasslands , tundra , coastal areas , agricultural land , scrublands , urban areas , and wetlands . Their habitats even include small oceanic islands with no human inhabitants . Further , the close relatives of domestic cats , the African wildcat ( Felis silvestris lybica ) and the Arabian sand cat ( Felis margarita ) both inhabit desert environments , and domestic cats still show similar adaptations and behaviors . 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 . 
