Okay, this dream was very creepy and somewhat disturbing.
So, a few people from my grade and me went on this field trip, and when we got there the tour guide said "(insert name here) was one of the evilest men ever to live."
Then I look around the room and it's like a big animal room. LIke, there are animals in cages, and stuff, but they're all dead. Then this guy was like experimenting on humans to try to turn them into animals and so there were human bodies with zebra heads and stuff, and I just remember how I wanted to vomit because it seemed so grotesque. There were five other identical rooms.
Then I took a walk outside in this field and I saw this creepy old man who came up to me and said "You better go inside or else he's going to get you."
So I quick ran inside, then I saw this guy from my class and I was like "hey John!"
Then I saw my friend Stephanie (who doesn't even go to the same school as me) and she was blond (she has like black hair) and her hair was curly. I remember then telling her how cute she was and she said she wasn't sure and was probably going to change it back.

Then I woke up cuz I had to use the bathroom.

Any thoughts?

Fascinating imagery.

The fact that the animals were in cages and dead and being experimented on could symbolize your inner basic instincts and desires being repressed and forcefully being reshaped by authority figures--parents, teachers, etc. The man doing the experimenting is a representation of such an authority figure. Parents and teachers try to mold or shape you into a societal norm. You may feel this molding or shaping as a contrast to what you are inside. If you are a teen-ager, than please note that this is very typical and natural for this age group.

Even if you are an older adult, they too can feel this way by way of supervisors and in-laws, etc.