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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?


To: PKRBKR who wrote (934281)5/10/2016 3:48:43 PM
From: Wharf Rat  Respond to of 1572452
 
"How about something within the past million years?"

There hasn't been a mass extinction event in the last 1 M years; until now.

"How many times have the continents turned over due to plate tectonics since then?"
The last big tectonic happening was when the Isthmus of Panama closed.

How the Isthmus of Panama Put Ice in the Arctic

Message 28033065