The evolution of multicellularity occurred repeatedly and independently in diverse lineages including animals, plants, fungi, as well as green and red algae. This transition is one of the great evolutionary events that shaped life on earth, says co-first author Simon E. Prochnik, Ph.D., a Computational Scientist at the DOE Joint Genome Institute. It has generated much thought and speculation about what makes multicellular organisms different or more complex than their unicellular ancestors.
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