Math describes sheep herd fluctuations
Equations quantify periodic spreading, clustering
![Merino sheep](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/09/092815_ss_sheep-main_free.jpg?fit=860%2C460&ssl=1)
ALL TOGETHER NOW In a herd, Merino sheep periodically spread apart and cluster back together. Scientists have developed equations that can describe this behavior.
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