Actually, we now know (through DNA sequencing) that the chicken had to come before the egg. Why? Well, only a chicken can make a certain protein that's crucial in the structure of the egg. Thus, the chicken had to come first.
Another Interesting little note. A baby fawn needs nourishment within 2 hours to survive. Problem, he has 4 stomachs. So there is a special tube in its mouth that for a short period of time bypasses some of the milk past the first 3 to put mommys milk directly into the 4th one. Intelligent design?