Was Nanotyrannus a bona fide species or just a teenage Tyrannosaurus rex with a lot more growing to do? Scientists have settled that debate.

This video offers a detailed timeline of prehistoric sharks, tracing their evolution across hundreds of millions of years. It highlights how early forms developed into powerful marine predators long ...

A new pterosaur species was recently discovered in the vomit of a dino. But that's just the start of revelations from ...

Researchers have dated vertebrae from a massive prehistoric shark thought to have ruled the waves off northern Australia back ...

Scientists were amazed to discover a 507-year-old clam that was already 100 in Shakespeare’s day, but why did it live so long ...

Anacondas come from an era when many fellow reptiles and amphibians were equally gigantic. They all shrank or disappeared, ...

In the animal kingdom, the creatures with the biggest hearts – relative to their size – are often the tiniest among us.