Here’s chapter 2 of the EdenStyle report on Pets.

Let’s now talk about pets, the protagonists of this expansions pack.
There are not just cats and dogs, but also horses (the most asked animals ever), unicorns (magic creatures), lizards, birds, snakes, turtles and rodents.
If you are lucky, you can also see deers and raccoons around the town (you cannot adopt them by the way).
Pets have many related features and are now controllable. It means that you can play as a dog, cat or horse like you usually do with normal Sims.