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Flocking dynamics

Sheep lead the way

Experiments with small flocks of sheep show intermittent collective motion events driven by random leaders that guide the group. A model reveals information pooling capabilities, suggesting a mechanism for swarm intelligence.

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Fig. 1: A flock of sheep.


  1. Gómez-Nava, L., Bon, R. & Peruani, F. Nat. Phys. (2022).

  2. Vicsek, T., Czirók, A., Ben-Jacob, E., Cohen, I. & Shochet, O. Phys. Rev. Lett. 75, 1226 (1995).

    Article  MathSciNet  ADS  Google Scholar 

  3. Couzin, I. D., Krause, J., Franks, N. R. & Levin, S. A. Nature 433, 513–516 (2005).

    Article  ADS  Google Scholar 

  4. Romanczuk, P., Couzin, I. D. & Schimansky-Geier, L. Phys. Rev. Lett. 102, 010602 (2009).

    Article  ADS  Google Scholar 

  5. Ferrante, E., Turgut, A. E., Dorigo, M. & Huepe, C. Phys. Rev. Lett. 111, 268302 (2013).

    Article  ADS  Google Scholar 

  6. Romanczuk, P., Bär, M., Ebeling, W., Lindner, B. & Schimansky-Geier, L. Eur. Phys. J. Spec. Top. 202, 1–162 (2012).

    Article  Google Scholar 

  7. Bazazi, S. et al. Curr. Biol. 18, 735–739 (2008).

    Article  Google Scholar 

  8. Katz, Y., Tunstrøm, K., Ioannou, C. C., Huepe, C. & Couzin, I. D. Proc. Natl Acad. Sci. USA 108, 18720–18725 (2011).

    Article  ADS  Google Scholar 

  9. Gautrais, J. PLoS Comput. Biol. 8, e1002678 (2012).

    Article  MathSciNet  Google Scholar 

Download references

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Correspondence to Cristián Huepe.

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The author declares no competing interests.

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Huepe, C. Sheep lead the way. Nat. Phys. 18, 1402–1403 (2022).

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