The world recovers much more quickly from mass extinctions that we thought. It seems that although 90 percent of ammonite species (squiddy things with shells) were wiped out during the Permian mass extinction, they recovered their pre-mass-extinction diversity within a million years, instead of the 5 to 15 million years previously estimated.See, on the geological time scale, nothing you do matters at all, not even causing mass extinctions.
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