The Big Cat is one of the default species available for villager creation. It's bases have a few variations to be inclusive of the many cat species that fall under its category. The lion has its own tail type and an added mane except on the lioness. The smilodon has its own tail type and added fangs.
The big cat has 17 different colors. The first three can be used upon villager creation, but the rest have to have a potion or correct color plush to be applied.