different between existed vs survived

existed

existed From the web:

• what existed before the big bang
• what existed before the universe
• what existed before existence
• what existed before the earth was formed
• what existed before dinosaurs
• what existed before god
• what existed before ice
• what existed in the paleozoic era

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survived

survived From the web:

• what survived the permian extinction
• what survived the ice age
• what survived the great dying
• what survived the cretaceous extinction
• what survived the extinction of the dinosaurs
• what survived the devonian extinction
• what survived the fall of the roman empire
• what survived the triassic jurassic extinction