Archaea are organisms consisting of a single cell without a nucleus and with distinct structural, physiological and evolutionary characteristics. They inhabit a wide range of habitats, including ...

However, a new study published this week in the journal Cell says that not only is this not true, but in fact, archaea have been consuming and producing hydrogen for two billion years—a process ...

This research bolsters the idea that all complex life, called eukaryotes, arose from a symbiotic relationship between bacteria and Asgard archaea. "It adds more support to the fact that the ...