Correcting each other's mistakes—why cells stuck together in early evolution

Modern animals—including humans—are stunningly complex organisms made of many billions of cells that work together. These complex multicellular organisms evolved from much simpler organisms, and those, in turn, evolved from single-celled ancestors. According to genomic and fossil data, the transition from single-celled organisms to multicellularity happened several times independently during evolution. What drove this transition to multicellularity? Researchers from Leiden University and the University of Amsterdam published a possible explanation for this transition in scientific journal eLife.

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