You have to have a bath tub on the lot. Then when you click to interact with a pet, it should come up with the bathe pet option. I've only been able to do this with dogs, though, since when I try with a cat it scratches the sim and produces a negative moodlet.
Chat with our AI personalities
You can't
No, it is like any normal sims game and you cant have a pet, but you can have babies.
as far as i know you cant
No, you cannot have Sims 2 pets on Sims 3. You must have Sims 3 pets for Sims 3 or Sims 2 pets for Sims 2.
Yes Sims pets will have different personalities because they can't all have the same personalities or your pets will get mixed up with other pet lol!!!!!!!!!