This paper on the lab culturing of "the closest living relatives of the ancient archaeal host cells from which eukaryotes are thought to have evolved" is pretty fab. These seem like rather weird cells.
Meet the relatives of our cellular ancestor
Time to add new slides to the #Microbiology lectures! A story about #Eukaryotic #Evolution
Meet the relatives of our cellular ancestor #archaea #asgardarchaea #eukaryogenesis Isolation of an archaeon at the prokaryote–eukaryote interface.