The Dunkleosteus is one of the most formidable fish to have ever swam in the seas, but its disappearance is something of a mystery.

When did the megalodon shark go extinct, and why? – Landon, age 10 Imagine traveling back in time and observing the oceans of 5 million years ago. As you stand on an ancient shoreline, you see several ...

A newly described species from Hawaiʻi hides itself with carcasses to avoid getting eaten by spiders. Newly described bone collector caterpillars build a silken case around their bodies and adorn ...

"In addition to finding fossilized teeth from tiger [sharks], makos, and great whites, you could uncover the most sought-after Paleo prize—the tooth of an extinct megalodon. The chompers of ...

Artistic reconstruction of Otodus megalodon along with other marine fauna. Hugo Saláis, CC BY 4.0, via Wikimedia Commons. The deep blue sea holds many secrets, but none as jaw-droppingly fascinating ...

Carcharocles (Carcharodon) megalodon. Gunnar Ries Amphibol, CC BY-SA 3.0, via Wikimedia Commons. Imagine a creature so immense and powerful that it dominated the oceans for millions of years. The ...

Megalodons were the largest sharks ever, reaching lengths of up to 80 feet. ©Herschel Hoffmeyer/Shutterstock.com The megalodon was the largest shark to have ever lived, but how does it measure up to ...

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A giant goldfish, described by officials as a "megalodon," was pulled from a waterway at Presque Isle State Park in Pennsylvania, according to People. The U.S. Fish and Wildlife Service found the ...