How did life make the leap from single cells to coordinated, multicellular organisms? And how do genetically identical cells ...

The oldest eukaryotes we've found lived exclusively on the seafloor and already used oxygen. The discovery overturns certain long-held assumptions about the group while corroborating others.

About a billion years ago, Earth started to come into its own. It was past the awkwardness of its younger years full of ...

The study found that the Port Askaig Formation, composed of layers of rock up to 1.1 km thick, was likely laid down between 662 to 720 million years ago during the Sturtian glaciation -- the first of ...

From the highest mountains to the deepest ocean, the driest desert to the lushest jungle, Earth displays a dazzling array of ...

Instead, blood appears to have been cobbled together from recycled and upgraded genetic machinery inherited from ...

Early eukaryotes, the lineage that later gave rise to animals, plants and fungi, may have depended on oxygen from the start.

The microscopic 1.7-billion-year-old creatures are among our oldest ancestors; pioneers which gave rise to all multicellular ...

Mono Lake is a beautiful but harsh environment, its salty and arsenic-laced water home to brine shrimp, alkali flies and little else. Scientists recently discovered an unsuspected resident, however, a ...

In a discovery that feels almost unreal, scientists have revived a microscopic organism that had been frozen in Siberian permafrost for around 24,000 years. The tiny creature, often referred to in ...

Blood cells carry a deep evolutionary history. A new analysis suggests their earliest ancestors were macrophage-like cells ...

The Illustrated Story of Life, biologist Christian Sardet invites readers on a vivid journey to appreciate the origin and ...