For nearly 20 million years, megalodons prowled the world’s oceans. The massive creatures, which could grow up to 80 feet ...

Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

Ever wonder how saber-toothed cats and other extinct creatures behaved? Well, a team of scientists unearthed ancient footprints that offer insight into how various prehistoric animals lived as far ...

Learn about Prototaxites, a bizarre group of prehistoric organisms that fall within an unknown lineage of extinct life.

For centuries, massive teeth found along coastlines puzzled scientists and naturalists. Researchers later discovered these ...

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Tens of thousands of years ago, the first wave of a worldwide tsunami now known as the “Sixth Extinction” swept across the ...

Will womb transplants transform fertility? What should we make of 'de-extinction' claims? And why are prices falling in the art market? Olly Mann and The Week delve behind the headlines and debate ...