Parallel adaptations to high temperatures in the Archaean eon

Fossils of organisms dating from the origin and diversification of cellular life are scant and difficult to interpret, for this reason alternative means to investigate the ecology of the last universal common ancestor (LUCA) and of the ancestors of the three domains of life are of great scientific value. It was recently recognized that the effects of temperature on ancestral organisms left |[lsquo]|genetic footprints|[rsquo]| that could be uncovered in extant genomes.

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