Origin of The Symbiote
It is unclear where the symbiotes actually originated, but it is known that their species existed for millions of years prior to the arrival of the Venom symbiote on Earth. It is implied that Galactus, devourer of worlds, consumed a world which they had taken over and where they had thrived, based on Carnage's reaction to the Silver Surfer, former herald of Galactus. It was mistakenly believed that this was their homeworld. It is shown through the Carnage symbiote that this was a world whose dominant life forms had been overrun by the marauding symbiotes.
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