In certain areas outside cats' native range, this has contributed, along with habitat destruction and other factors, to the extinction of many bird species.
Northern Sami gađfe "female stoat" and Hungarian hölgy "stoat; lady, bride" from Proto-Uralic *käďwä "female (of a fur animal)".
In any case, cat is a classic case of a Wanderwort.
Cats can hear sounds too faint or too high in frequency for human ears, such as those made by mice and other small animals. Like most other mammals, cats have poorer color vision and a better sense of smell than humans.
Cats, despite being solitary hunters, are a social species and cat communication includes the use of a variety of vocalizations (mewing, purring, trilling, hissing, growling, and grunting), as well as cat pheromones and types of cat-specific body language.
Huehnergard opines it is "equally likely that the forms might derive from an ancient Germanic word, imported into Latin and thence to Greek and to Syriac and Arabic".
Guus Kroonen also considers the word to be native to Germanic (due to morphological alternations) and Northern Europe, and suggests that it might ultimately be borrowed from Uralic, cf.
Under controlled breeding, they can be bred and shown as registered pedigree pets, a hobby known as cat fancy.
Failure to control the breeding of pet cats by neutering, as well as the abandonment of former household pets, has resulted in large numbers of feral cats worldwide, requiring population control.
Cats are thought to be primarily responsible for the extinction of 33 species of birds, and the presence of feral and free-ranging cats makes some otherwise suitable locations unsuitable for attempted species reintroduction. In comparison to dogs, cats have not undergone major changes during the domestication process, as the form and behavior of the domestic cat is not radically different from those of wildcats and domestic cats are perfectly capable of surviving in the wild.