Movie S1. The behavior of a swarm of n = 100, 10:1 anisotropic (long and thin) individuals within our hybrid projection model. This movie shows the distinct behavioral phenotypes observed with the parameters ϕp and ϕa, highlighted in Fig. S16. Each frame is a single timestep. This movie is obtained for ϕp = 0.1, ϕa = 0.75, point B in Fig. S16; this shows a phenotype displaying a high level of orientational order, similar to that seen in migratory animals.