Ten years ago, nobody knew that Asgard archaea even existed. In 2015, however, researchers examining deep-sea sediments ...

ETH researchers discovered related structures in Asgard archaea and describe their structure. These experiments show that ...

According to this latest study, all complex life forms (a.k.a. eukaryotes) trace their roots back to a common ancestor among a group of microbes called the Asgard archaea.

Finally, the three-domain structure of Woese's tree (Figure 1a) shows that evolutionary history is decoupled from biological organization. Indeed, archaea and bacteria appear very similar ...

Ten years ago, nobody knew that Asgard archaea even existed. In 2015, however, researchers examining deep-sea sediments discovered gene fragments that indicated a new and previously undiscovered form ...

“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, ...

Scientists propose that the eukaryotic branch of this family tree formed when two prokaryotes ... Leão and his team used a database of prokaryotic defense systems to study the distribution of complete ...

Defense systems found in all complex life on Earth came from "Asgard." The ancestor of plants, animals and fungi evolved around 2 billion years ago, likely from a group of complex microbes called ...