2 ms·

So the sixth wasn't too bad?

• ASalazarMX 4y ago
  > occurred 550 million years ago, during the Ediacaran period. [..] > Although unclear whether this represents a true “mass extinction,” the percentage of organisms lost is similar to these other events, including the current, ongoing one. > The researchers believe environmental changes are to blame for the loss of approximately 80% of all Ediacaran creatures, which were the first complex, multicellular life forms on the planet. Pretty bad, but a very old extinction, and order of magnitude older than the dinosaurs' extinction.