(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 ...

Scientists from the UK recently conducted a detailed re-examination of a fossilized Prototaxites species found in ...

of all cellular life really existed, although we still know little about what this ancestor was like and how it lived. Finally, the three-domain structure of Woese's tree (Figure 1a) shows that ...

An ancient and enormous organism called Prototaxites, initially found to be a type of fungus, may actually be an unknown ...

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

Who were our earliest ancestors? The answer could lie in a special group of single-celled organisms with a cytoskeleton similar to that of complex organisms, such as animals and plants.

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