Doing so can even help with the communication between co-workers, especially with the ones you are having trouble establishing a professional relationship with. Even if you hate the guy sitting next to you in the workplace, if he happens to have e cute lovely pet with him, for sure you will be all over him laughing and making small chat. Talk about team effort now!
In any case if you are considering bringing your pet at the office make sure that everyone approves and the environment it is appropriate.