Add Yahoo as a preferred source to see more of our stories on Google. A fascinating fossil discovery in remote South Australia sheds light on an important chapter in the history of life on Earth: the ...

The Jiangchuan Biota indicates that we may have misjudged the Cambrian “explosion” of complex life.

The history of a major animal group, composed of millions of species of insects, arachnids, and nemotodes, has been elusive -- until now. A team has now identified the oldest known ecdysozoan in the ...

How and why the Cambrian explosion occurred has been the subject of debate ever since fossils of this remarkable event were ...

Everyone has a past. That includes the millions of species of insects, arachnids, and nematode worms that make up a major animal group called the Ecdysozoa. Until recently, details about this group’s ...