Long before humans walked the Earth, the skies of South America were ruled by a colossal bird. Argentavis magnificens, one of ...

The true size of a gigantic prehistoric megalodon shark that ruled the oceans millions of years ago has been revealed for the first time -- and it had teeth as big as hands, and a fin as tall as a ...

Crocodiles already inspire fear at their modern size, but today’s saltwater crocodiles are only a shadow of what once lived in Earth’s rivers and wetlands. The fossil record shows that some ...

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 ...