Learn how egg size may help explain why ammonites didn’t survive the end-Cretaceous extinction 66 million years ago, while ...

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 ...

Scientists found new clues about one of the last living Neanderthals. By sequencing the DNA from one of the Neanderthal's teeth, they discovered a completely new lineage. The DNA indicates recent ...

Scientists — and avid Game of Thrones viewers — have known about dire wolves and their extinction for a while. The species became extinct thousands of years ago, but thanks to the work of modern ...

The end-Triassic extinction, which happened 201 million years ago, was Earth’s third most severe extinction event since the dawn of animal life. Like today, CO 2 rise and global warming were present, ...