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I believe all water on the planet came from space from the glacial belt. Life formed in the stagnant "primordial pools", Then over millions of years Earth traversed as part of its orbit through the glacial belts until we have the oceans we have today. The world becoming two thirds water had a larger mass so gravity pulled it away from the glacial belt so no more water. Maybe that change of mass killed the dinosaurs? Maybe instead of one huge meteor in Mexico it was thousands of glacial asteroids and possible one so large it caused the strike in bay of Mexico too large to evaporate in Earths atmosphere. Could that be what happened ? Gravity is a constant now but smaller planet less gravity. I find it hard to believe such huge animals could walk the earth with the gravity forces we know.

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12y ago

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