Beneath the surface of a Colombian coal mine, scientists made a discovery so extraordinary that it rewrote what we know about giant reptiles. In 2009, researchers unearthed fossil remains of an ...

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Roaming the ancient seas eons ago, the megalodon shark eviscerated its prey with jaws that were 10 feet wide. Warpaintcobra/iStock via Getty Images Plus Imagine traveling back in time and observing ...

Megalodon, the biggest shark to have ever lived, may not have looked like an uber great white shark as is generally assumed — but instead may have been longer and thinner, scientists have revealed.

The megalodon went extinct 3.6 million years ago, and is thought to be the largest shark that ever swam the Earth. But the megalodon may not have been as big as once thought, some researchers suggest.

For decades, the giant prehistoric shark known ominously as “The Meg" has been portrayed as a massive apex predator that hunted the only formidable opponent in the oceans at the time: whales. But new ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Through an analysis of fossilized ...

The megalodon went extinct 3.6 million years ago, and is thought to be the largest shark that ever swam the Earth. But there's debate over what it looked like. Most scientists have described it as a ...

Dr. Carlos Jaramillo of the Smithsonian Tropical Research Institute shares the incredible story of the Titanoboa, a colossal snake that lived 60 million years ago. He explains how its fossils were ...

A new study has uncovered surprising insights into the feeding habits of the largest predatory fish to ever roam the Earth's oceans, challenging long-standing assumptions about the prehistoric ...

Two researchers discovered what may be the longest snake ever to have crawled across the continent when they uncovered the fossilized remains of a partial vertebral column in Western India.