[allrightyeo]

isn't that the main loop hole of who was born first? chicken or the egg?

[jobigoud]

Egg was first by millions of years.

[AstralStorm]

Do you mean "cell" which is neither egg (which is a specific specialized kind of a cell - reproductive) nor chicken?

[ginsu]

Well, the cellular specialization arose long before amphibians emerged from bodies of water, and amphibians laid eggs long before birds evolved, eventually branching out into any species of chicken.