Collective memory and spatial sorting in animal groups.

  title={Collective memory and spatial sorting in animal groups.},
  author={Iain D. Couzin and Jens Krause and Richard James and Graeme D. Ruxton and Nigel R. Franks},
  journal={Journal of theoretical biology},
  volume={218 1},
We present a self-organizing model of group formation in three-dimensional space, and use it to investigate the spatial dynamics of animal groups such as fish schools and bird flocks. We reveal the existence of major group-level behavioural transitions related to minor changes in individual-level interactions. Further, we present the first evidence for collective memory in such animal groups (where the previous history of group structure influences the collective behaviour exhibited as… 

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