The iconic, armored, 14-foot-long Dunkleosteus was something of an "evolutionary oddball,” a new study has revealed.

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About 360 million years ago, the shallow sea above present-day Cleveland was home to a fearsome apex predator: Dunkleosteus terrelli. This 14-foot armored fish ruled the Late Devonian seas with ...

Learn all about the fascinating discovery of three deep-sea species, found off the coast of California, including the cute ...

On the northeastern shores of Japan, a strange, gelatinous creature recently appeared in the surf. Pale blue and ...

These three fish are freaks, phantoms and mysteries of the deep. Here’s what we’ve learned from the rare glimpses we’ve had ...

Meet the “ghost fish,” a phantom of the abyss. Here’s how we found the first ever proof of its existence just a few years ago ...

Researchers were unaware that this large fossil was even an egg until they pierced through its membrane with microscopes and ...