Prionodontinae is a subfamily of the mammalian family Felidae, commonly known as the cat family. The subfamily includes small wild cats like the rusty-spotted cat, the fishing cat, and the leopard cat. There are many synonyms for the word Prionodontinae, including Leopardinae, Otocolobinae, and Felinae. Researchers have used these synonyms interchangeably to refer to the same subfamily of feline species. Prionodontinae are commonly found in South and Southeast Asia, and they have a unique set of physical and behavioral characteristics that enable them to adapt to the diverse ecosystems in which they live. These cats are important components of their respective ecosystems and are essential to maintaining ecological balance.