egg came 1st.

dere used 2 b a bird named archeopteryx(oldest known bird)  who at some point of time evolved in2 an animal dat was 1 generation away 4m being a proper chicken.it is believed(n now proven) dat this bird laid eggs which produced d chicken,so no doubt THE EGG CAME FIRST.------------------------------------------------------------------------------

source--------------Reader's Digest (nov.2002 issue),as explained by reknowned scientists.