Godzilla (Earth-1947)

""Nature has a way sometimes of reminding man of just how small he is. She occasionally throws up the terrible offsprings of our pride and carelessness, to remind us of how puny we really are in the face of a tornado, an earthquake, or a Godzilla. The reckless ambitions of man are often dwarfed by their dangerous consequences. For now Godzilla, that strangely... innocent and tragic monster has gone to earth. Whether he returns or not, or is never again seen by human eyes, the things he has taught us, remain...""

- - Robert Brody

Pre-History
It is theorized by experts that Godzilla existed during the Permian period as an apex hunter who eventually entered into a hibernation-like state at the bottom of the ocean, feeding on deep sea organisms to survive.

Early Existence
It has been said that Godzilla remained underwater for hundreds of millions of years.