A groundbreaking new study has pushed the timeline of life’s origin further back than previously thought. Researchers have determined that the last universal common ancestor (LUCA) – the microbe from ...

all the way back to the last universal common ancestor, or LUCA, a hypothetical population of organisms that lived roughly 4 ...

LUCA, Earth’s first common ancestor, lived 4.2 billion years ago. Scientists now reveal it was complex, resilient, and may ...

All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A new study suggests that this organism likely lived on Earth only 400 million years after its formation. Further ...

These results provided strong evidence that the last universal common ancestor (LUCA) of all cellular life really existed, although we still know little about what this ancestor was like and how ...

What we can know about biology before the last universal common ancestor is limited—and we should be circumspect in filling in the gaps. In a world in which magical thinking persists in popular ...

New research shows that all blue-eyed people share a common ancestor. This person lived more than 6,000 years ago and carried a genetic mutation that has now spread across the world. The exact ...

(A) Archaezoan hypothesis. (B) Symbiotic hypothesis. The shapes within the eukaryotic cell denote the nucleus, the endomembrane system, and the cytoskeleton. The irregular gray shape denotes a ...

Meet some of the people featured in the March 2014 issue of The Scientist. A series of rodent experiments showed that even with abundant food and water, personal space is essential to prevent societal ...

A genetic reconstruction shows the Last Universal Common Ancestor, or LUCA, was a simple organism that lived off the gases spewing out of the Earth's crust This advertisement has not loaded yet ...