We think of mass extinctions as brief moments of havoc — profoundly devastating but over within a geologic instant. The Devonian, the second of the so-called "Big Five,” defies this notion. If the ...

The newest exhibit at The Academy of Natural Sciences of Drexel University will give visitors a glimpse into the world millions of years ago. "Life Onto Land: The Devonian" centers around the crucial ...

The planet's trees have seen plenty of history pass by their trunks. In fact, they began to populate Earth 385 million years ...

The Devonian Mass Extinction wiped out 70 percent of life from our planet some 360 million years ago, but what caused the deadly event has remained a mystery- until now. The animals, mostly marine ...

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A long, long time ago — between 378 million and 375 million years ago — about half of all species on the planet vanished. The trigger for this mass extinction, one of five known in Earth's history, ...

The first African fossils of Devonian tetrapods (four-legged vertebrates) show these pioneers of land living within the Antarctic circle, 360 million years ago. The first African fossils of Devonian ...

Since the beginning of time, Earth has created life and then wiped out most of it in catastrophic, ultra-destructive moments. Starting with the very first extinction event since multicellular life ...