Ancient colour vision: multiple opsin genes in the ancestral vertebrates

  title={Ancient colour vision: multiple opsin genes in the ancestral vertebrates},
  author={Shaun P. Collin and M. A. Knight and Wayne I L Davies and Ian C. Potter and David M. Hunt and Ann E. O. Trezise},
  journal={Current Biology},

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The discovery of colour in Cambrian animals prompts a new hypothesis on the initiation of the ‘Big Bang’ in animal evolution which occurred during the Cambrian: light was introduced into the behavioural systems of metazoan animals for the first time.
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