Unfertilized eggs do not create offspring. They either create menstrual blood/waste, or breakfast food, depending on the type of creature, mammal or non-mammal.
Every egg that hatches was previously fertilized (at least for sexually-reproducing organisms). The animal that hatches from the fertilized egg became a genetically distinct organism when its egg was fertilized, not when the egg was hatched or laid.
In the case of chickens, eggs are fertilized before being laid; when we talk about “unfertilized eggs”, we usually mean eggs that were not fertilized before being laid. Such eggs were not part of the discussion until you introduced them.
Okay, let’s back it up a bit…
Unfertilized eggs do not create offspring. They either create menstrual blood/waste, or breakfast food, depending on the type of creature, mammal or non-mammal.
Every egg that hatches was previously fertilized (at least for sexually-reproducing organisms). The animal that hatches from the fertilized egg became a genetically distinct organism when its egg was fertilized, not when the egg was hatched or laid.
In the case of chickens, eggs are fertilized before being laid; when we talk about “unfertilized eggs”, we usually mean eggs that were not fertilized before being laid. Such eggs were not part of the discussion until you introduced them.