They first emerged on land around 400 million years ago, and were thick-waisted versions called trigonotarbids. They also ...

IFLScience needs the contact information you provide to us to contact you about our products and services. You may unsubscribe from these communications at any time.

For more than 150 years, scientists have debated whether Prototaxites—which stood roughly 24 feet tall and 3 feet wide—were an early lichen or fungus, like a “giant mushroom” ...

Earth 400+ million years ago. We often look at sharks with fear, but it’s equally important to recognize their evolutionary longevity—something that can be seen in their statuesque faces ...

One of the most important milestones in the evolution of life began some 400 million years ago, when the first animals made their way from water onto land. At that time, known as the Devonian ...