The Sims 2: Pets

Create Your Sim choose your Sims’ gender, skin tone, hairstyle, hair colour and aspirations.
Adopt a Pet pick out the perfect pet at The Pet Shop, each day six new pets are available for adoption.
Make some Simoleans! choose from a variety of careers including Pet Sitting, Animal Education, Veterinary Medicine and Animal Para-Psychology.
Pets with personality like their Sim friends, pets have personalities that determine their behaviour including neatness, friendliness, playfulness and activeness. But remember, you can’t always teach old dogs new tricks!
Teaching and Training have your Sim train their pet to compete in pet shows.

Source: TheGamesDB