One of the big evolutionary questions in life is how and why single cell organisms organised themselves to live in a group, thereby forming multicellular life forms. The muliticellular algae, Tetrabaena socialis [Credit: Hisayoshi Nozaki and Yoko Arakaki]Wits PhD student, Jonathan Featherston, of the Evolution of Complexity Laboratory at the University of the Witwatersrand, Johannesburg, has answered at least part of this question, by...

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