For nearly two centuries, scientists have tried to solve an enduring mystery about a giant millipede-like animal named Arthropleura that used its many legs to roam Earth more than 300 million years ...

The island of Floreana, part of the Galápagos archipelago, is steeped in mystery and lore. From its history as a prison in the 1830s to eccentric human inhabitants one hundred years later to the world ...

In the Mesozoic Era, dinosaurs were the undisputed rulers of the land. The Argentinosaurus, possibly the largest dinosaur ever, stretched up to 100 feet long and weighed around 100 tons. These ...

Hundreds of millions of years before dinosaurs, the tallest things on land were not trees or animals but towering, trunk-like organisms that looked like something from science fiction. Around 400 ...