The Mesozoic ocean may have been one of the most dangerous places in Earth’s history, filled with predators that still feel unreal today. Fossils reveal massive jaws, strange body shapes, and hunting ...

Megalodon usually gets all the attention when it comes to sea monsters, but ancient oceans were full of predators just as strange and scary. Fossils tell us that long before modern sharks ruled the ...

This ancient, armored sea monster snatched its marine prey with a formidable bite more than 300 million years ago. Belonging to the fierce Dunkleosteus genus, it was among the planet’s first apex ...

New fossil discoveries are forcing scientists to redraw the boundaries of ancient oceans, suggesting that some of the most formidable marine predators did not always stay at sea. From gigantic ...

Mosasaurs were the apex predators of the oceans during the reign of the dinosaurs, but new research reveals dinosaurs weren't safe from them in rivers either. Researchers from Sweden, the US, and the ...

For millions of years, the land we now call the United States has been home to towering prehistoric beasts, strange sea creatures, and lush ancient forests that no longer exist. Evidence of this ...