This 1.6 compatible mod adds wild animals. I have been playing with it for close to a month and today I saw a large creature on the bridge to the quarry. “What is that?!?” was my only reaction as I watched it walk around.
Highly recommend it.
Spoiler: Large Animal on Bridge
It was a griffon.
If the Junimos wandering look like flowers or anything weird, this mod is responsible for that. You can check out the sprite sheets.