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JAMSTEC

Electron and fluorescence micrographs of archaeal strain HC1: round cells, one with long branching protrusions, a cell attached to methane-producing partners, and cryo-tomograms of cell interiors with no nucleus.

Two Archaea From a Gas Well Hint Complex Cells' Ancestor Was Plain Inside

Two archaea grown in Japan have no nucleus, live on peptides and need a methane-making partner. They narrow how complex cells may have begun, but they rest on two strains from one well.

Science · 29 Oct 2026, 12:44 · Daniel Okafor