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there's a "killer algae" hypothesis to mass extinctions that argues (not without evidence) that algae are such a ridiculous terraforming agent that the impact of ecological shifts caused by an asteroid or massive eruption is multiplied many times over by the resultant changes to algae populations.
i mean, they caused the first mass extinction via terraforming. they shat oxygen in a world where oxygen was poisonous.
algae Show more
@bram yeah!
- regarding that "first mass extinction" aka the great oxygenation event: https://en.wikipedia.org/wiki/Great_Oxygenation_Event
- regarding the "killer algae hypothesis": https://www.livescience.com/5835-recipe-mass-extinction-add-algae-stir-controversy.html