Yiff is erotica depicting Furry characters. Sex is found in every aspect of human life, and the Furry Fandom is no exception.

The Furry Fandom seems to have a great deal more erotica than any other hobby, and this is probably due to two simple factors. One, Furries tend to congregate to large galleries rather than have their own individual galleries. Thus the few galleries out there get all the artwork, clean or not. The other factor seems to be that there are different legal hurdles for drawn artwork than photographs of real people. Thus Furries can get away with weird kinky stuff with ease.

An important point about Yiff is that it is not the primary reason behind the Furry Fandom. It is simply a part of it. Many Furries would prefer that it died out and never came back, but unfortunately like regular human porn it sells. The best anyone can do is stick around sites that do not permit it. See the page about other sites for some examples of these clean sites.

Lastly, it should be noted that "yiff" was originally an enthusiastic "Hello" or "Yes" in the early days of the Furry Fandom.