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

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 ...

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 ...

Long before the Grand Canyon became a hotspot for tourism, it was a hub of ancient animal activity. All kinds of marine animals lived in the area back when it was submerged in the ocean during the ...

More than half a billion years ago, the world's first monster appeared. With bulging eyes and fearsome, grasping claws, Anomalocaris cruised the seas during the geologic time period known as the ...

A treasure trove of exceptionally preserved early animals from more than half a billion years ago has been discovered in the Grand Canyon, one of the natural world's most iconic sites. Subscribe to ...

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 ...

The fossil of an ancient sea squirt found in a collection at the Utah Museum of Natural History turned out to be the oldest of its kind. When you purchase through links on our site, we may earn an ...

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.

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 ...

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 ...