Help! >> symbol in front of all of my blog posts?

Hi! I was testing some other blog themes, but recently went back to using Atahualpa. However, since re-activating it, I've noticed that the >> symbol is appearing before my blog name-- both in my browser window, and now it's showing up in search engine results for my blog. I've attached images to show you what I mean. Can anyone tell me why this is happening and more importantly, how to get rid of it?