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

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.

Their discovery showed that even tucked away in our innards – in the walls of our stomachs, subjected to vinegar-like pH ...

However, scientists have not given up hope of finding what they call LUCA (Last Universal Common Ancestor, the ancestral cell from which all living things we know are descended) beyond the confines of ...

LUCA, short for Last Universal Common Ancestor, is believed to be the single-celled organism from which all life on Earth descended. Estimated to have existed around 4.2 billion years ago, LUCA is ...

A DNA helix. Screenshot from LUCA— The Last Universal Common Ancestor Source: YouTube Channel: Michael Leveille After the rancher reported the trapped animal to Colorado Parks and Wildlife (CPW), ...