Animals are the main focus of the Animania mod, they are meant to replace vanilla animals or improve vanilla animals behaviour. There are a lot more animals then just the vanilla ones though, as Animania adds types that are completely new. For most of the vanilla and new mods there are also different Breeds which add diversity to an animal type.
Animals in Animania come in 3 types, these are Farm Animals, Pets and Ambient Creatures.
Farm animals are animals that can be domesticated and used to create their relative produce. Each type of animal has their own produce which can be used in crafting recipes. Depending on the breed of animal the produce can have special properties that are exclusive to that breed, this makes collecting a wide variety worth while.
Ambient creatures are animals that add life to the world, some of them have small interactions with players but most of these animals are for show or decoration.