Are there any Nintendo DS games about pets that actually grow up?

I’ve got Nintendogs, and it’s fun and all, but it gets boring since the dog just stays a puppy forever. Same with pretty much every pet-related game for the DS that I find. Are there any DS games with pets that grow up, and you can perhaps breed or show or things like that?
“The Sim Pets” seems to be more about the people, with the pets added, than about the actual pets. At least, that’s what the computer game was like. In the PC game the pets were pretty much just decoration. They didn’t do anything.