concept

Last Universal Common Ancestor

Also known as: LUCA

Facts (4)

Sources

Do Extremophiles on Earth Mean That Life Is Common in the Galaxy ... reasons.org Reasons to Believe Nov 22, 2019 2 facts

claimExtremophiles provide little or no information regarding the conditions under which the Last Universal Common Ancestor (LUCA) originated.

claimAll extremophiles are believed to have originated from a common ancestor known as the Last Universal Common Ancestor (LUCA), with each species developing specific adaptations to protect their DNA and cellular components in harsh environments.

Prebiotic chemistry and origin of living beings - Frontiers frontiersin.org Frontiers Feb 3, 2026 2 facts

referencePalacios-Pérez and José (2019) analyzed the evolution of the proteome from the primeval state to the dawn of the last universal common ancestor (LUCA).

referenceMoody et al. (2024) investigated the nature of the last universal common ancestor (LUCA) and its impact on the early Earth system in a study published in Nature Ecology & Evolution.