Luca didn’t look anything like us – it was ... that viruses – parasites that hijack the machinery of their host cells to replicate themselves – are an inevitable outcome of how life ...

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

This acronym stands for the “Last Universal Common Ancestor,” which scientists believe was a tiny, and very basic, organism. They think that this single-cell being was the forefather from the ...

(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 ...

whereas the oblong red shape denotes a typical archaeon with a cell wall. A: archaea; B: bacteria; E: eukaryote; LUCA: last universal common ancestor of cellular life-forms; LECA: last eukaryotic ...