Eh, it's a short list for me, but there are certainly a few.
For one, there are bees. There are few things in this world that I actually fear. Among that short list are bees. When I was three, I was playing in my bedroom and I rolled underneath my bed. I have no idea why, but there was a yellow jacket under my bed and I crushed it with my arm. You can probably imagine how that felt.
Ever since then, I have been TERRIFIED of bees. I'm sixteen now, and the fear is just as real thirteen years later. I also had a really big fear of yellow jackets, and by that I mean yellow-colored jackets. I was three, okay?
As for other animals, I would have to say chihuahuas. Any other dog, I'm fine with. I love dogs. They're loyal, friendly, and all-in-all great pets and friends. But chihuahuas are just... ugh. Whenever I see a chihuahua, it yaps and barks at me, and I just want to punt it over my back fence.