Around 66 million years ago, a six-mile-wide asteroid hit Earth, triggering the extinction of three-quarters of all living ...

Researchers analyzed fossils and DNA to get a big-picture view of sloth evolution and determine what drove their immense size ...

During the years after the Civil War, America embraced an economic philosophy called laissez-faire, celebrating the notion ...

Are extinct species regularly rediscovered, or is it just a myth? In this fascinating video, we explore the incredible stories of animals that have seemingly come back from extinction, turning the ...

The Chicago Archaeopteryx provides rare 3D insights into skull evolution, soft tissue structure, and the first evidence of ...

May 28, 2025 — A new species of velvet worm, Peripatopsis barnardi, represents the first ever species from the arid Karoo, which indicates that the area was likely historically more forested ...

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.