Researchers watched in real time as a single-celled algae evolved into a multicellular organism. The transition took place over the course of 50 weeks and was caused simply by the introduction of a predator to the environment. Time-lapse videos are available in the supplementary info.

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Researchers watched in real time as a single-celled algae evolved into a multicellular organism. The transition took place over the course of 50 weeks and was caused simply by the introduction of a predator to the environment. Time-lapse videos are available in the supplementary info.