The last mass extinction (excluding the current, ongoing mass extinction) that occurred approximately 66 million years ago, resulted in the extinction of three quarters of all plant and animal species and wiped out all non-avian dinosaurs, and yet the Earth then was still more hospitable to life than any other planet we know of.
The last mass extinction (excluding the current, ongoing mass extinction) that occurred approximately 66 million years ago, resulted in the extinction of three quarters of all plant and animal species and wiped out all non-avian dinosaurs, and yet the Earth then was still more hospitable to life than any other planet we know of.