Some animals are memorable because of their size. Others because of how dangerous or rare they are. But then there are a few ...

Scientists studying the fossil remains of giant prehistoric kangaroos have found that even animals weighing more than 200kg may not have been too big to bounce, overturning long-held assumptions about ...

Giant kangaroos that lived during the Ice Age may not have been as slow and grounded as once believed. A new study finds their leg bones and tendons were likely strong enough to support hopping, ...

An illustration of Procoptodon goliah, a giant kangaroo that weighed up to about 550 pounds and went extinct around 40,000 years ago Nobu Tamura via Wikimedia Commons under CC-BY-3.0 For many people, ...

The kraken — a gigantic, tentacled sea monster capable of dragging ships and sailors down into the depths — is a creature of Norwegian myth. But millions of years ago, a similar real-life animal ...

Three hundred million years ago, dragonfly-like creatures with wingspans stretching 70 centimeters patrolled the skies of a world nothing like our own. These griffinflies, as paleontologists call them ...

Don’t Miss the Full Video Story Below What if the past was not really gone forever? Creatures like the saber toothed tiger, ...

Turtles today are often slow-moving, modestly sized creatures, but their ancient relatives were quite different. Long before modern turtles evolved into the familiar forms we recognize today, some ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. When scientists finally measured the most powerful bite ...