Trilobites are famous not just because they were so beautifully functional, or because they happened to preserve so w...

During the Cretaceous Period, dinosaurs were more diverse, more fierce, and more strange than ever. But something els...

There are animals in the fossil record that challenge some of our most basic ideas about what animals are supposed to...

If you take it as a given that extinct dinosaurs were all weird and wonderful, then you gotta at least consider that ...

We know a lot about dinosaurs but there’s one question that has plagued paleontologists for decades: what color were ...

Smilodon was a fearsome Ice Age cat, the size of a modern-day tiger, that had a pair of fangs nearly 18 centimeters l...

What if we told you that there was a time when oxygen almost wiped out all life on Earth? 3 billion years ago, when t...

Today, we’re familiar with two types of flying vertebrates -- birds and bats. But over 66 million years ago, there wa...

With its lizard-like appearance and that distinctive sail on it back, Dimetrodon is practically the mascot of the Pal...

Natural history is full of living things that were long thought to have gone extinct only to show up again, alive and...

There are many fossils that challenge our ability to form even the most basic idea of how a living thing looked, or l...

Insects outnumber humans by a lot and we only like to think we're in charge because we're bigger than they are. But i...

Fossil fuels are made from the remains of extinct organisms that have been exposed to millions of years of heat and p...

Part of why we’re so fascinated with extinct dinosaurs it’s just hard for us to believe that animals that huge actual...

Besides the blue of the oceans, the dominant color of our planet, as we know it, is green. But imagine a time when th...

Crocodiles, horseshoe crabs and tuatara are animals that have persisted for millions of years, said to have gone unch...

We know whales as graceful giants bound to the sea. But what if we told you there was actually a time when whales cou...

Our image of dinosaurs has been constantly changing since naturalists started studying them about 350 years ago. Take...

By looking at the layers beneath our feet, geologists have been able to identify and describe crucial episodes in lif...

More than 4 billion years ago, the crust of the Earth was still cooling and the oceans were only beginning to form. B...

Over the past 20 years, dinosaurs of all types and sizes have been found with some sort of fluff or even full-on plum...

Imagine an enormous, lush rainforest teeming with life...in the Arctic. Well there was a time -- and not too long ago...

Probably twice the size of a modern gorilla, Gigantopithecus is the greatest great-ape that ever was. And for us fell...

420 million years ago, a giant feasted on the dead, growing slowly into the largest living thing on land. It belonged...