Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
The domestic cat, Felis catus, is a small feline mammal used in the study of disease and behaviour. Over 250 hereditary diseases are shared between cats and humans, as well as some infectious diseases such as acquired immunodeficiency syndrome (AIDS).