A lot happened in the hundreds of millions years separating the first and last eukaryotic common ancestors, but when and how most features arose remains a mystery. Eukaryogenesis is broadly defined as ...

The origins of life on Earth have long fascinated scientists, particularly the nature of the last universal common ancestor (LUCA). LUCA, the root of the evolutionary tree from which Bacteria and ...

All modern organisms fall into two classes, eukaryotes and prokaryotes. Eukaryotes (from the Greek meaning “true kernel”) have a cell nucleus that harbours most of the cell’s genetic information and ...