This extinction was connected with massive volcanic eruptions caused by the breakup of the supercontinent Pangaea. The volcanism pumped greenhouse gases into the atmosphere, acidified the oceans, and ...

(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 ...

A thin layer of clay in Italy, unusually rich in iridium, revolutionized the understanding of dinosaur extinction. This rare element, abundant in meteorites, pointed to a massive extraterrestrial ...

Homo sapiens’ interconnected networks gave them a survival edge over more isolated Neanderthals amid environmental changes.