Learn more about a time period marked by an intense burst ... a wormlike creature that swam in middle Cambrian seas. Fossils found in the Burgess Shale of British Columbia show traces of a ...

The fossils found date back to a geological and evolutionary period known as the Ediacaran–Cambrian transition. This was when the Ediacaran Period, which spanned 94 million years from the end of the ...

By the start of the Cambrian period 541 million years ago, or soon after, they had almost entirely vanished from the fossil record as we know it. That’s why some scientists have suggested that ...

This period saw the emergence of many major groups ... in geochemistry occurred before the first appearance of many Cambrian fossils, indicating a complex interplay between biological evolution ...

517-Million-Year-Old Cambrian Fossils Indicate Earliest Known Example ... the drivers of evolutionary innovation during the Cambrian period. This discovery demonstrates that "predation played ...

For over half a billion years, evolution has sculpted the nervous systems of bilaterian animals, equipping them with ...

Pioneering research reveals the origins of the ventral nerve cord in early molting animals. An international team of ...

Once assembled, this genetic tool kit enabled an unprecedented period of evolutionary experimentation -- and competition. Many forms seen in the fossil record of the Cambrian disappeared without ...

The fossils also showed that the eye stalks were mobile ... The evolution of eyes could certainly have triggered an arms race during the Cambrian Period,' says Dr Ma. 'Eyes give you a huge advantage ...

Among the many fossilized stars is a 26-meter-long Mamenchisaurus jingyanensis, a gigantic herbivore that lived around 150 ...