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Ancient fossils show how the last mass extinction forever scrambled the ocean’s biodiversity
About 66 million years ago – perhaps on a downright unlucky day in May – an asteroid smashed into our planet. The fallout was immediate and severe. Evidence shows that about 70% of species went ...
Morning Overview on MSN
Study suggests Earth’s first mass extinction may have been overlooked
A wave of new research is forcing paleontologists to reconsider a basic question about life on Earth: when did the first mass ...
Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...
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