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Q&A An Earlier Pleistocene = Mass Extinction?

Five million years ago, the warm Miocene gradually descended into the cool Pliocene before dropping into the frigid Pleistocene. Such a change in temperature was so gradual that life went on withou...

1 answer  ·  posted 9y ago by JohnWDailey‭  ·  last activity 8y ago by JohnWDailey‭

Question biology alternate-worlds time ice prehistoric-times