Life on Earth had to begin somewhere, and scientists think that “somewhere” is LUCA—or the Last Universal Common Ancestor.

all the way back to the last universal common ancestor, or LUCA, a hypothetical population of organisms that lived roughly 4 billion years ago and represents the shared progenitor of all species ...

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 ...

We may earn commission if you buy from a link. Why Trust Us? All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A study suggests that this organism likely lived on ...

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 ...

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.

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 ...

(B) The rooted three-domain tree. (C) The network of life. A: archaea; B: bacteria; E: eukaryote; LUCA: last universal common ancestor of cellular life-forms. The question mark indicates the ...