Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multicelled life-forms almost ...

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 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 ...

A groundbreaking fossil discovery in remote South Australia sheds light on one of evolution’s greatest mysteries: the origins of Ecdysozoa, a superphylum of molting animals including insects, ...