Figure 4.

Statistics and example of the chases. (a) Probability distributions of a beetle's kinematics (v_b, ω_b) and the prey dummies' kinematics in the fixed coordinate system (v_p) as well as relative to the beetle (θ_e, ω_e, ω_p; 34 pursuits, n = 5929 frames). (b–e) Sample of recorded chases. The beetles are able to pursue prey moving along straight trajectories or very sinuous ones. Conventions are as in figure 2 with prey positions connected by a dotted line.