Kiwi Forego Vision in the Guidance of Their Nocturnal Activities

  title={Kiwi Forego Vision in the Guidance of Their Nocturnal Activities},
  author={Graham R. Martin and K‐J. Wilson and J. Martin Wild and Stuart Parsons and M. Fabiana Kubke and Jeremy R. Corfield},
  journal={PLoS ONE},
BACKGROUND In vision, there is a trade-off between sensitivity and resolution, and any eye which maximises information gain at low light levels needs to be large. This imposes exacting constraints upon vision in nocturnal flying birds. Eyes are essentially heavy, fluid-filled chambers, and in flying birds their increased size is countered by selection for both reduced body mass and the distribution of mass towards the body core. Freed from these mass constraints, it would be predicted that in… 

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