As one of the coldest periods in Earth's history, the Hirnantian Icehouse played a crucial role in the second-largest mass extinction in Earth's history, known as the Late Ordovician Mass Extinction, ...

Our readers explain the maximum size of a quadrupedal animal and consider the sizes of dinosaurs, blue whales and colonial ...

During the Mesozoic Era, the “age of reptiles” which lasted from 252 to 66 million years ago and which includes the Jurassic period, dinosaurs, pterosaurs and other giant reptiles roamed Earth – with ...

Cats can come in all shapes and sizes. But what is the biggest cat in the world? Here is what you need to know about the ...

A capybara is on the loose after escaping from a UK zoo - with the public urged not to approach the creature which is the ...

The world and its ecosystems have been around for a long time — so long that the first mass extinction occurred “just shy” of ...

Ancient artifacts can tell the story of humanity and how we evolved technologically, spiritually, and emotionally. However, sometimes archaeologists find ...

This was the Ordovician-Silurian extinction ... If you were there, you’d have witnessed the gigantic Sauropod Argentinosaurus, the largest land animal ever. Or you might have been chased by one of ...

The world and its ecosystems have been around for a long time — so long that the first mass extinction occurred “just shy” of ...