Fossils in China show that complex animals existed before the Cambrian explosion, changing our understanding of how life ...

In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to find it around many of the most common stars in the galaxy. Earth-like ...

A team led by researchers at the University of Texas at Austin has produced what may be the strongest evidence yet that the ancient ancestors of all complex life on Earth already had the genes to use ...

Complex life began to develop earlier, and over a longer span of time, than previously believed, a new study has revealed. The research sheds new light on the conditions needed for early organisms to ...

Life on Earth began simply. For billions of years, tiny microbes ruled the planet. Then, one day in deep time, something changed. Cells gained a nucleus, built inner compartments and learned to ...