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 ...

MAYVILLE, N.D. — A once-in-a-lifetime discovery in rural North Dakota. The fossil remnants of an ancient sea monster. There are many remnants of the ancient past inside Mayville State University: ...

Monsters have appeared in stories for thousands of years. But which creature might be the first monster in recorded mythology? This video explores ancient myths and the origins of legendary creatures.

Prehistoric animals were so wild, they’d fit right into a sci-fi movie! The Therizinosaurus had massive claws that looked like something from an alien invader—perfect for scaring off predators. Then ...

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 ...