My first debate - Which of these came first, the chicken or the egg?

Hello everyone, this is my first time being on the website. I have read over about 5 debates now, and feel somewhat confident in starting my first debate. I ask that you "take it easy on the newbie," so to speak =D. Anyway, let's get things going. This debate is going to be based first on what you think came first, the chicken or the egg, and what proof that you have for your opinion. I will sign on as pro, meaning for the chicken coming first, and my opponent, whoever that may be, will sign...