
Assuming you mean chicken egg, and not just eggs (which @Sanctus@anarchist.nexus points out are much older than chickens) then it’s really a philosophical question. Does the egg belong to the hen or the chick? If it belongs to the hen, then the chicken chick came out of a proto-chicken egg, else the chicken’s egg came before it did.

or a bo, if the tan is the same as the log in zoo