The evolutionary origin of complex features

@article{Lenski2003TheEO,
  title={The evolutionary origin of complex features},
  author={R. Lenski and C. Ofria and Robert T. Pennock and C. Adami},
  journal={Nature},
  year={2003},
  volume={423},
  pages={139-144}
}
A long-standing challenge to evolutionary theory has been whether it can explain the origin of complex organismal features. We examined this issue using digital organisms—computer programs that self-replicate, mutate, compete and evolve. Populations of digital organisms often evolved the ability to perform complex logic functions requiring the coordinated execution of many genomic instructions. Complex functions evolved by building on simpler functions that had evolved earlier, provided that… Expand

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