It may have been bigger than the event that wiped out the dinosaurs.
Click here for original story, Mass extinction 2 billion years ago reportedly killed 99 percent of life on Earth – CNET
Source: CNET
It may have been bigger than the event that wiped out the dinosaurs.
Click here for original story, Mass extinction 2 billion years ago reportedly killed 99 percent of life on Earth – CNET
Source: CNET