Rare fossils found along the Colorado River 'give us a fuller picture of what life was like during the Cambrian period,' says ...

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 ...

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 ...

What New Research Reveals About Cambrian Sociality Think again about the idea of ancient life being a solo fight. New fossil finds show that Cambrian creatures were actually partying like it’s 1999.

The Cambrian explosion, the evolutionary "big bang" that led to the emergence of a trove of complex life forms, was caused by multiple events, researchers argue. Genetic changes allowing for complex ...

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 ...

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

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 ...

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 ...