3 ms·
Except that isn't necessarily true. Wasn't one of the first major extinction events caused by over-oxygenation of the environment?
by BookmarkSaver 9y ago
Except that isn't necessarily true. Wasn't one of the first major extinction events caused by over-oxygenation of the environment?
- saagarjha 9y ago1. Cyanobacteria aren’t one species and 2. on the whole, oxygenation didn’t work out so well for the anaerobic bacteria that caused it, did it?