I got my electric bill in the mail and I made a copy to send to my accountant.
Now, which came first, the bill, or a copy of the bill?
Obviously, you cannot have a copy of the bill, without first having a bill to copy. The electric bill is a representation of everything that came prior to that point. You turn the lights on, you watched TV, used the microwave and at the end of the month, the electric bill came. Now you have something to copy and send to your accountant.
In the case of the chicken, you have to stretch the timeline a little further to see. The chicken, is the result of everything that has happened to this point, and the egg, which comes out of the chicken, is in essence, a copy of the chicken. It contains all the chromosomes and DNA, (the chemical directions) to become a chicken. Although the copy is very close to the original, it is slightly different, just like a copy of your electric bill looks slightly different, from that of the original electric bill.
If you go back to the beginning of that chicken's life, it too started out, as a copy of its original in the form of an egg, almost identical, but slightly different from its mommy and daddy chicken.
Now if you repeat the last paragraph for about 10 million years, the first chicken did not look anything at all like its modern-day chicken brother of 10 million years later. Assuming general evolutionary theories are at play, the very first chicken may have only been a single celled animal, whose original chemical makeup resulted from some randomly assimilated chemicals and a bolt of lightning. Don't forget, a chicken egg when it first comes from its mommy is usually only one cell, unless of course the Daddy chicken (rooster) was around.
Just as your original electric Bill was created from random events of power usage in your home, so was the first chicken created from random events on the planet. As each chicken reproduced with slight variations each time, the end result of 10 million years of slight variations can be quite significant. Imagine what your electric bill would look like if you made a copy of a copy of a copy 10 million times. Heck, that might even look like a chicken.
Now I'm hungry, so I'm going to buy me a chicken sandwich.
Toodles, Philosophy Heads