Scientists have yet to determine precisely how novel archaea should be classified. Also in dispute is how Eukarya fit into the picture—some scientists suggest they’re an offshoot of a branch known as ...

Indeed, archaea and bacteria appear very similar biologically (members of both groups consist of tiny cells without much internal structure) and different from eukaryotes. However, until ...

Earth’s immense web of life fill three broad domains—archaea, bacteria, and eukarya. Scientists from Monash University recently discovered hydrogen-producing enzymes in archaea, which were ...

Two recent reports have identified a new Sec synthase that catalyzes the last step in the generation of this aminoacyl-tRNA in eukarya and archaea.

“This should have a major effect on textbook treatment of these subjects.” Since the late 1980s, all life forms have been split into three groups on the phylogenetic tree of life: bacteria, archaea, ...