Eye Evolution: The Blurry Beginning

@article{Nilsson2008EyeET,
  title={Eye Evolution: The Blurry Beginning},
  author={Dan-Eric Nilsson and Detlev Arendt},
  journal={Current Biology},
  year={2008},
  volume={18},
  pages={R1096-R1098}
}
Recent work on the expression of retinal transcription factors and other molecular cues delivers interesting but partly contradictory information on the early phases of eye evolution. 

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