Sounds like something PETA would come after you for lol probably worth what you registered it for... might be able to set up an animal hot line on it...
Lol I was thinking the same also. As is, its barely worth the reg... fee, but if you set up a site to it, then it will be a different story. Go ahead and go for it, animal classified ads site is a pretty good idea, especially for the millions of breeders around the world... Grab the other extensions before someone steals your idea