By resurrecting a 3.2-billion-year-old enzyme and studying it inside living microbes, researchers at the University of ...

Our planet is unique for its ability to sustain abundant life. From studies of the rock record, scientists believe life had already emerged on Earth at least 3.5 billion years ago and probably much ...

Backed by a National Science Foundation grant of more than $500,000, Pfeifer, the lead principal investigator, and a team of ...

Learn how the emergence of new plankton species started life's swift recovery after the asteroid impact that killed most ...