SUPPLEMENTARY MATERIALS
Text S1. Theoretical derivation for the expected value of MSD and
diffusivity.
Fig. S1. Distribution and trajectories of experimental \(D_{\theta}\).
Fig. S2. Trajectories at three different values of \(D_{\theta}\).
Fig. S3. Behaviors of mean squared displacement (MSD) at different
values of \(D_{\theta}\).
Fig. S4. The efficiency without scaling to the maximal foraging
efficiency.
Movie S1. Typical trajectories of swimming diatoms in real experiments
on diatom movement behaviors.
Movie S2. Typical trajectories of swimming diatoms in theoretical
simulations of Eqs. (1).