Originally Posted by Kevsh

The chicken - you can't have an egg without a chicken to create it.
Easy.

Oh, yes, where did the chicken come from if not an egg? Another chicken, the egg came later (called "evolution") - the egg was created to protect the newborn chickies (for one thing).

Next.

Originally Posted by volante

Egg.

This egg was laid by a creature genetically very VERY similar to a chicken, but not an actual chicken, and the embryo inside the egg contains a genetic mutation significant enough that it develops into a chicken.