A cursory flip through any high school biology textbook will inevitably surface a mention of the Cambrian explosion, a period about 540 million to 520 million years ago during which many animal groups ...

Grand Canyon fossils in the Bright Angel formation reveal 500M-year-old animals with dual feeding structures, reshaping ...

The Cambrian period wasn’t just a chapter in Earth’s history – it was the plot twist that changed everything. What New Research Reveals About Cambrian Sociality Think again about the idea of ancient ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Around 540 million years ago, Earth’s life underwent a burst of ...

After decades of confusion and false starts, scientists have at last uncovered the face of Hallucigenia, one of the most ...

Spiders, crabs, and other arthropods evolved from a group of animals that underwent a burst of diversity around 500 million years ago. One fossil site provides an extraordinary glimpse into these ...

Around 500 million years ago a strange creature with bulging eyes, a rudderlike tail and 30 pairs of spiny limbs extending from its cigar-sized body swam through Earth’s seas. Most of its legs ...

The deposit contains more than 50 unknown species from the Cambrian Explosion. This is an Inside Science story. (Inside Science) -- A new trove of outstandingly preserved fossils in China from the ...

Biomechanical studies on the arachnid-like front "legs" of an extinct apex predator show that the 2-foot (60 centimeter) marine animal Anomalocaris canadensis was likely much weaker than once assumed.

Today, Earth is home to animals of all shapes and sizes, from nearly microscopic creatures like tardigrades to 80-foot-long (25 meters) blue whales. These organisms have arisen and evolved over ...