According to a new study, eukaryotes — complex life forms with nuclei in their cells, including all the world’s plants, animals, insects and fungi — trace their roots to a common Asgard archaean ancestor. That means eukaryotes are, in the parlance of evolutionary biologists, a ‘well-nested clade’ within Asgard archaea, similar to how birds are one of several groups within a larger group called dinosaurs, sharing a common ancestor.
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Source: ScienceDaily