I had a dream I bought what I thought was a male a rat, and "he" turned out to be pregnant. I decided to sell the babies on Craigslist.

The dream takes place a while after the babies were born. As I was sexing them, the "mother" was still male, the two females in the litter turned into bunnies when I took them out of the cage, and there just happened to be these skinny little colorful lizards, one blue and one red. I also just happened to have crickets for the lizards and enough cages for everything. Nugget was there, too, and he was noticeably older. [Do mice even get noticeably older!?]