Do Raccoon and Foxes even spawn naturally?

I've seen a raccoon spawn in my game

I saw neither of them in my game. In fact I never even saw strays outside Brindleton Bay.

Yup. I've been playing Catarina for a while and among the numerous strays in Whiskerman's Wharf is one raccoon.
https://78.media.tumblr.com/02fbed8a27bc43503902718d962be216/tumblr_p2ejfvbswK1v8k7elo1_1280.jpg
I even had a picture. I like taking pictures of Sims and pets walking by (I have a slight obsession about Mayor Whiskers though ;) He's so awesome).
That said, I haven't seen a stray fox yet - but there is a stray cat in my game that, from a distance, looks very fox-like.

I have yet to see a raccoon or a fox