Driver of the largest mass extinction in the history of the Earth identified ~science Article 830 words 13 votes
Study shows erosion of ozone layer responsible for mass extinction event ~enviro Article 1135 words 8 votes
When will the Earth try to kill us again: Most mass extinctions began with vast convulsions of Earth’s interior—can we detect that? ~science Article 1625 words, published Nov 9 2017 13 votes