During these waves of mass extinction, most vertebrate survivors were confined to refugia, or isolated biodiversity hotspots ...

Some 445 million years ago, life on Earth was forever changed. During the geological blink of an eye, glaciers formed over ...

Around 250 million years ago, one of Earth's largest known volcanic events set off The Great Dying: the planet's worst mass extinction event. The eruptions spewed large amounts of greenhouse gases ...

Extinction troubled us long before we had a name for it. The original mascot for the loss of species, even before the concept was understood, was the dodo. The bird — fat and flightless, found by 17th ...

Earth has a long and dramatic history, and one recurring theme is extinction. Did you know that over the last 500 million years, our planet experienced five major mass extinction events? These events ...

(CNN) — No species lasts forever — extinction is part of the evolution of life. But at least five times, a biological catastrophe has engulfed the planet, killing off the vast majority of species from ...

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