So last night I was feeding my sons's iguana and as I opened her cage door she leaped out and landed on my shoulder, like she often does. No big deal. But then as I was placing her food in her cage, all of a sudden she started biting my face! She's never done that before! I yanked her off and quickly put her back in the cage. Now I have bite marks and scratches all over my face and arms. What the heck? Why would she do that? And it wasn't just one bite, it was one after another.