Sheep Are More Democratic Than You Think

c0lo writes:

https://www.scienceofintelligence.de/press-release-sheep-are-more-democratic-than-you-think/

Collective motion brings to mind fascinating images, such as the flocks of birds over a corn field, or schools of barracudas as they move in circles in the water. These motions are also particularly appealing to physicists, as the patterns that emerge lend themselves to mathematical and statistical modeling that can help them better understand this phenomenon. When it comes to sheep, many studies describe the collective behavior in sheep flocks as a self-organized process where individuals continuously adapt their direction and speed to follow the motion and collective decisions of the group - as if the only leading force were the "collective brain" itself. This view, however, does not take into account that animals do not move continuously, or the possible hierarchies existing in many animal groups and the potential benefits of having a single individual lead the way.

[...] According to Gomez-Nava and collaborators, when the sheep stop to feed or rest between one collective motion phase and the next, they randomly pick a new group leader for the next round of flocking, thus transferring control to a new individual each time. In this way, individuals take turns being leaders and the flock's collective intelligence is achieved democratically, over many collective motion phases.

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