Great oxygenation event Memes

The unsung heroes of Earth's atmosphere getting zero credit! 😤 Trees get all the oxygen-making fame while cyanobacteria are sitting there like "excuse me, I literally INVENTED oxygen production 2.7 BILLION years ago!" These tiny blue-green microbes caused the Great Oxygenation Event that made Earth habitable for complex life, but do they get cute conservation campaigns? Nope! Just that sad cat face. Justice for cyanobacteria - they were making you breathable air before it was cool! #TeamCyano

Talk about the ultimate biological betrayal! About 2.5 billion years ago, cyanobacteria started photosynthesizing and pumping oxygen into the atmosphere like it was nobody's business. Meanwhile, anaerobic microorganisms who were just vibing in their oxygen-free paradise were like "WTF dude?!" This oxygen apocalypse (literally called the Great Oxygenation Event) wiped out most anaerobic life forms in what was essentially the first and most devastating mass extinction on Earth. Imagine showing up to a party and changing the atmosphere so drastically that 99% of the guests die. Power move, cyanobacteria. Savage. Now we oxygen-breathers get to exist because these microscopic rebels decided to completely terraform the planet. Thanks for the air, you tiny blue-green assassins!