Figure 3
From: Simple rules for construction of a geometric nest structure by pufferfish
Emergence of radial ditches in the outer-ring region. (A–C) Snapshots of simulations using the early-stage parameters with no preference of entry position (A) p was set as 0 for all excavations), mild preference (B) H = 0.15), and strong preference (C, H = 0). p is the possibility that the fish discards the selected entry position. H is the highest limit that the pufferfish can start excavation. One scale of the simulation was estimated as 0.80 cm from the previous study20. Excavation was repeated 2000 times for each simulation. b = 6, f = 10.
