Haha. I honestly dont really have any fears.
I dont mind spiders, snakes, rodents, etc. I have rational fears, of course. I know to be afraid of poisonous things, or dangerous animals.

However, i'll admit that I get a bit nervous in the ocean. My father practically has a phobia of sharks, and wont go any further in the ocean than his ankles, really. And its made me a little paranoid over the years. I've swam in the ocean just fine snorkling out in Hawaii. I would keep looking around on and off to make sure, but otherwise I was fine. :]