Sea World

I dreamt I was swimming in one of those underwater tanks that they have at sea world. All of the animals and plants from the ocean were there. Dolphins, sharks, fish, algae, seaweed, etc. They were biting everyone that was in the tank (i.e. other swimmers). The animals weren't angry, but upset; the swimmers seemed scared. I remember a shark moving past me with a frustrated look on its face. When I woke up I remembered wondering in my dream, I wonder why they are biting everyone else but me?