How do you know that what we think is the chicken, isn't really a hampster? Maybe we've grown up thinking it's a chicken, when it's really a hampster, and what we think is a hampster, is really a chicken.... Therefore, the chicken came first because everybody knows hampsters don't lay eggs.... But if a chicken really is a chicken, then I guess that the chicken came first, (unless you see a human hatching that egg and feeding the little chicken, or, if you live in a perfect world, food just comes to it....)