Aerial Sheep Flow

I may never get tired of drone videos of sheep herding. They are mesmerizing to watch and full of so many characteristics of flow. Like a compressible fluid, the herd squeezes together as it passes through a gate, then spreads and decreases density as it reaches the pasture. (Video credit: L. Patel; via Colossal; submitted by Florian T. and Matevz D.) Read the full article